NDA II 2017 Mathematics
This test contains 120 question. Each question comprises four responses (answers). You need to select only ONE response for each question.
All questions carry equal marks.
Each question for which a wrong answer has been marked, one-third of the marks assigned to that question will be deducted as penalty.
If a candidate gives more than one answer, it will be treated as a wrong answer even if one of the given answers happens to be correct and there will be same penalty as above to
that question.
If a question is left blank, i.e., no answer is given by the candidate, there will be no penalty for that question.
All questions carry equal marks.
Each question for which a wrong answer has been marked, one-third of the marks assigned to that question will be deducted as penalty.
If a candidate gives more than one answer, it will be treated as a wrong answer even if one of the given answers happens to be correct and there will be same penalty as above to
that question.
If a question is left blank, i.e., no answer is given by the candidate, there will be no penalty for that question.
- Question 1
If x + log10 (1 + 2x) = xlog105 + log106 then x is equal toOption A: 2, –3Option B: 2 onlyOption C: 1Option D: 3VIEW SOLUTION
- Question 2
The remainder and the quotient of the binary division (101110)2 ÷ (110)2 are respectivelyOption A: (111)2 and (100)2Option B: (100)2 and (111)2Option C: (101)2 and (101)2Option D: (100)2 and (100)2VIEW SOLUTION
- Question 3
The matrix A has x rows and x + 5 columns. The matrix B has y rows and 11 – y columns. Both AB and BA exist. What are the values of x and y respectively?Option A: 8 and 3Option B: 3 and 4Option C: 3 and 8Option D: 8 and 8VIEW SOLUTION
- Question 4
If where Sn denotes the sum of the first n terms of an AP, then the common difference isOption A: P + QOption B: 2P + 3QOption C: 2QOption D: QVIEW SOLUTION
- Question 5
The roots of the equation
(q – r)x2 + (r – p) x + (p – q) = 0 areOption A: (r – p)/ (q – r), 1/2Option B: (p – q) / (q – r), 1Option C: (q – r) / (p – q), 1Option D: (r – p) / (p – q), 1/2VIEW SOLUTION
- Question 6
If E is the universal set and A = B ∪ C, then the set E – (E – (E – (E – (E – A)))) is the same as the setOption A: B’∪ C’Option B: B ∪ COption C: B’∩ C’Option D: B ∩ CVIEW SOLUTION
- Question 7
If A = {x : x is a multiple of 2}, B = {x : x is a multiple of 5} and C = {x : x is a multiple of 10}, then A ∩ (B ∩ C) is equal toOption A: AOption B: BOption C: COption D: {x : x is a multiple of 100}VIEW SOLUTION
- Question 8
If α and β are the roots of equation 1 + x + x2 = 0, then the matrix product is equal toOption A:Option B:Option C:Option D:VIEW SOLUTION
- Question 9
If |a| denotes the absolute value of an integer, then which of the following are correct?
1. |ab| = |a| |b|
2. |a + b| ≤ |a| + |b|
3. |a – b| ≥ ||a| – |b||
Select the correct answer using the code given below.Option A: 1 and 2 onlyOption B: 2 and 3 onlyOption C: 1 and 3 onlyOption D: 1, 2 and 3VIEW SOLUTION
- Question 10
How many different permutations can be made out of the letters of the word 'PERMUTATION'?Option A: 19958400Option B: 19954800Option C: 19952400Option D: 39916800VIEW SOLUTION
- Question 11
- Question 12
- Question 13
It is given that the roots of equation x2 – 4x – log3 P = 0 are real. For this, the minimum value of P isOption A:Option B:Option C:Option D: 1VIEW SOLUTION
- Question 14
If A is a square matrix, then the value of adjAT – (adj A)T is equal toOption A: AOption B: 2|A|I, where I is the identity matrixOption C: null matrix whose order is the same as that of AOption D: unit matrix whose order is the same as that of AVIEW SOLUTION
- Question 15
The value of the product up to infinite terms isOption A: 6Option B: 36Option C: 216Option D: 512VIEW SOLUTION
- Question 16
The value of determinant
for all the values of θ, isOption A: 1Option B: cos θOption C: sin θOption D: cos2θVIEW SOLUTION
- Question 17
The number of terms in the expansion of after simplification isOption A: 202Option B: 101Option C: 51Option D: 50VIEW SOLUTION
- Question 18
In the expansion of (1 + x)50, the sum of coefficients of odd powers of x isOption A: 226Option B: 249Option C: 250Option D: 251VIEW SOLUTION
- Question 19
If a, b, c are non-zero real numbers, then the inverse of matrix
is equal toOption A:Option B:Option C:Option D:VIEW SOLUTION
- Question 20
A person is to count 4500 notes. Let an denote the number of notes that he counts in the nth minute. If a1= a2 = a3 = … = a10 = 150, and a10, a11, a12, … are in AP with the common difference –2, then the time taken by him to count all the notes isOption A: 24 minutesOption B: 34 minutesOption C: 125 minutesOption D: 135 minutesVIEW SOLUTION
- Question 21
The smallest positive integer n, which , isOption A: 1Option B: 4Option C: 8Option D: 16VIEW SOLUTION
- Question 22
If we define a relation R on the set N × M as (a, b) R (c, d) ⇔ a + d = b + c for all (a, b), (c, d) ∈ N × N, then the relation isOption A: symmetric onlyOption B: symmetric and transitive onlyOption C: equivalence relationOption D: reflexive onlyVIEW SOLUTION
- Question 23
If y = x + x2 + x3+ … up to infinite terms, where x < 1, then which of the following is correct?Option A:Option B:Option C:Option D:VIEW SOLUTION
- Question 24
If α and β are the roots of equation 3x2 + 2x + 1 = 0, then the equation whose roots are α + β–1 and β + α–1 isOption A: 3x2 + 8x + 16 = 0Option B: 3x2– 8x – 16 = 0Option C: 3x2 + 8x – 16 = 0Option D: x2 + 8x + 16 = 0VIEW SOLUTION
- Question 25
- Question 26
A tea party is arranged for 16 people along the two sides of a long table with eight chairs on each side. Four particular men wish to sit on one particular side and two particular men on the other side. The number of ways they can be seated isOption A: 24 × 8! × 8!Option B: (8!)3Option C: 210 × 8! × 8!Option D: 16!VIEW SOLUTION
- Question 27
The system of equations kx + y + z = 1, x + ky + z = k and x + y + kz = k2 has no solution if k equalsOption B: 1Option C: –1Option D: –2VIEW SOLUTION
- Question 28
If then a and b are respectivelyOption A: n, 2Option B: n, 3Option C: n + 1, 2Option D: n + 1, 3VIEW SOLUTION
- Question 29
In ∆PQR, . If tan and tan are the roots of equation ax2 + bx + c = 0, then which of the following is correct?Option A: a = b + cOption B: b = c + aOption C: c = a + bOption D: b = cVIEW SOLUTION
- Question 30
If , then the maximum value of |z| is equal toOption A:Option B:Option C:Option D:VIEW SOLUTION
- Question 31
The angle of elevation of stationary cloud from the point 25 m above a lake is 15° and the angle of depression of its image in the lake is 45°. The height of the cloud above the lake level isOption A: 25 mOption B: mOption C: 50 mOption D: mVIEW SOLUTION
- Question 32
The value of tan 9° – tan 27° – tan 63° + tan 81° is equals toOption A: –1Option C: 1Option D: 4VIEW SOLUTION
- Question 33
The value of cosec 20° – sec 20° is equal toOption A: 4Option B: 2Option C: 1Option D: –4VIEW SOLUTION
- Question 34
Angle α is divided into two parts A and B such that A – B = x and tan A : tan B = p : q. The value of sin x is equal toOption A:Option B:Option C:Option D:VIEW SOLUTION
- Question 35
- Question 36
The angles of the elevation of the top of a tower from the top and the foot of a pole are respectively 30° and 45°. If hT is the height of the tower and hP is the height of the pole, then which of the following are correct?
1.
2.
3.
Select the correct answer using the code given belowOption A: 1 and 3 onlyOption B: 2 and 3 onlyOption C: 1 and 2 onlyOption D: 1, 2 and 3VIEW SOLUTION
- Question 37
In a triangle ABC, a – 2b + c = 0. The value of isOption A:Option B: 3Option C:Option D: 1VIEW SOLUTION
- Question 38
- Question 39
In triangle ABC, if then the triangle isOption A: right-angledOption B: equilateralOption C: isoscelesOption D: obtuse-angledVIEW SOLUTION
- Question 40
The principal value of sin–1 x lies in the intervalOption A:Option B:Option C:Option D: [0, π]VIEW SOLUTION
- Question 41
The points (a, b), (0, 0), (–a, –b) and (ab, b2) areOption A: the vertices of parallelogramOption B: the vertices of a rectangleOption C: the vertices of a squareOption D: collinearVIEW SOLUTION
- Question 42
The length of the normal from origin to the plane x + 2y – 2z = 9 is equal toOption A: 2 unitsOption B: 3 unitsOption C: 4 unitsOption D: 5 unitsVIEW SOLUTION
- Question 43
If α, β and γ are the angles which the vector (O being the origin) makes with positive direction of coordinate axes, then which of the following are correct?
1. cos2α + cos2 β = sin2 γ
2. sin2 α + sin2 β = cos2 γ
3. sin2 α + sin2 β + sin2 γ = 2
Select the correct answer using the code given belowOption A: 1 and 2 onlyOption B: 2 and 3 onlyOption C: 1 and 3 onlyOption D: 1, 2 and 3VIEW SOLUTION
- Question 44
The angle between the lines x + y – 3 = 0 and x – y + 3 = 0 is α and the acute angle between the lines and is β. Which one of the following is correct?Option A: α = βOption B: α > βOption C: α < βOption D: α = 2βVIEW SOLUTION
- Question 45
Let and be three vectors. If and are both perpendicular to the vector and , then what is the magnitude of ?Option A: unitsOption B: unitsOption C: unitOption D: unitVIEW SOLUTION
- Question 46
If and are two unit vectors, then the vector is parallel toOption A:Option B:Option C:Option D:VIEW SOLUTION
- Question 47
A force acts on a particle to displace it from the point to the point . The work done by the force will beOption A: 5 unitsOption B: 7 unitsOption C: 9 unitsOption D: 10 unitsVIEW SOLUTION
- Question 48
- Question 49
A man running around a race course notes that the sum of the distance of two flag-posts from him is always 10 m and the distance between the flag-posts is 8 m. The area of the path enclosed isOption A: 18π square metresOption B: 15π square metresOption C: 12π square metresOption D: 8π square metresVIEW SOLUTION
- Question 50
The distance of point (1,3) from the line 2x + 3y = 6, measured parallel to the line 4x + y = 4, isOption A: unitsOption B: unitsOption C: unitsOption D: unitsVIEW SOLUTION
- Question 51
If the vectors and are coplanar, then the value of is equal toOption B: 1Option C: a + b + cOption D: abcVIEW SOLUTION
- Question 52
The point of intersection of the line joining the points (–3, 4, –8) and (5, –6, 4) with the XY-plane isOption A:Option B:Option C:Option D:VIEW SOLUTION
- Question 53
If the angle between the lines whose direction ratios are (2, –1, 2) and (x, 3, 5) is , then the smaller value of x isOption A: 52Option B: 4Option C: 2Option D: 1VIEW SOLUTION
- Question 54
The position of the point (1, 2) relative to the ellipse isOption A: outside the ellipseOption B: inside the ellipse but not at the focusOption C: on the ellipseOption D: at the focusVIEW SOLUTION
- Question 55
The equation of a straight line which cuts off an intercept of 5 units on negative direction of y-axis and makes an angle 120° with positive direction of x-axis isOption A:Option B:Option C:Option D:VIEW SOLUTION
- Question 56
The equation of the line passing through the point (2, 3) and the point of intersection of lines 2x – 3y + 7 = 0 and 7x + 4y + 2 = 0 isOption A: 21x + 46y – 180 = 0Option B: 21x – 46y + 96 = 0Option C: 46x + 21y – 155 = 0Option D: 46x – 21y – 29 = 0VIEW SOLUTION
- Question 57
The equation of the ellipse whose centre is at the origin, major axis is along x-axis with eccentricity and latus rectum 4 units isOption A:Option B:Option C:Option D:VIEW SOLUTION
- Question 58
The equation of the circle which passes through the points (1, 0), (0, –6) and (3, 4) isOption A:Option B: 2Option C:Option D:VIEW SOLUTION
- Question 59
A variable plane passes through a fixed point (a, b, c) and cuts the axes in A, B and C respectively. The locus of the centre of the sphere OABC, O being the origin, isOption A:Option B:Option C:Option D:VIEW SOLUTION
- Question 60
The equation of the plane passing through the line of intersection of the planes x + y + z = 1, 2x + 3y + 4z = 7, and perpendicular to the plane x – 5y + 3z = 5 is given byOption A: x + 2y + 3z – 6 = 0Option B: x + 2y + 3z + 6 = 0Option C: 3x + 4y + 5z – 8 = 0Option D: 3x + 4y + 5z + 8 = 0VIEW SOLUTION
- Question 61
- Question 62
A function is defined as follows:
Which one of the following is correct in respect of the above function?Option A: f(x) is continuous at x = 0 but not differentiable at x = 0Option B: f(x) is continuous as well as differentiable at x = 0Option C: f(x) is discontinuous at x = 0Option D: None of the aboveVIEW SOLUTION
- Question 63
- Question 64
Consider the following:
1. x + x2 is continuous at x = 0
2. x + cos is discontinuous at x = 0
3. x2 + cos is continuous at x = 0
Which of the above are correct?Option A: 1 and 2 onlyOption B: 2 and 3 onlyOption C: 1 and 3 onlyOption D: 1, 2 and 3VIEW SOLUTION
- Question 65
Consider the following statements:
1. dy/dx at a point on the curve gives slope of the tangent at that point.
2. If a(t) denotes acceleration of a particle, then gives velocity of the particle.
3. If s(t) gives displacement of a particle at time t, then ds/dt gives its acceleration at that instant.
Which of the above statements is/are correct?Option A: 1 and 2 onlyOption B: 2 onlyOption C: 1 onlyOption D: 1, 2 and 3VIEW SOLUTION
- Question 66
- Question 67
- Question 68
A function is defined in (0, ∞) by
Which of the following is correct in respect of the derivation of the function, i.e., f’(x)?Option A: f’(x) = 2x for 0 < x ≤ 1Option B: f’(x) = –2x for 0 < x ≤ 1Option C: f’(x) = –2x for 0 < x < 1Option D: f’(x) = 0 for 0 < x < ∞VIEW SOLUTION
- Question 69
Which of the following is correct in respect of the function f(x) = x(x – 1)(x+1)?Option A: The local maximum value is larger than local minimum valueOption B: The local maximum value is smaller than local minimum valueOption C: The function has no local maximumOption D: The function has no local minimumVIEW SOLUTION
- Question 70
Consider the following statements:
1. Derivative of f(x) may not exist at some point.
2. Derivative of f(x) may exist finitely at some point.
3. Derivative of f(x) may be infinite (geometrically) at some point.
Which of the above statements are correct?Option A: 1 and 2 onlyOption B: 2 and 3 onlyOption C: 1 and 3 onlyOption D: 1, 2 and 3VIEW SOLUTION
- Question 71
- Question 72
The function isOption A: oddOption B: evenOption C: both even and oddOption D: neither even nor oddVIEW SOLUTION
- Question 73
If
then which one of the following is correct?Option A:Option B:Option C:Option D:VIEW SOLUTION
- Question 74
The general solution of
represents a circle only whenOption A: a = b = 0Option B: a = –b ≠ 0Option C: a = b ≠ 0, h = kOption D: a = b ≠ 0VIEW SOLUTION
- Question 75
If and , then which of the following is correct?Option A: l = 1, m = 1Option B:Option C:Option D: l = 1, m = ∞VIEW SOLUTION
- Question 76
- Question 77
The area bounded by the curve isOption A: 1 square unitOption B: square unitsOption C: 2 square unitsOption D: square unitsVIEW SOLUTION
- Question 78
If x is any real number, then belongs to which of the following intervals?Option A: (0,1)Option B:Option C:Option D: [0,1]VIEW SOLUTION
- Question 79
The left-hand derivative of
f(x) = [x] sin (πx) at x = k
where k is an integer and [x] is the greatest integer function, isOption A:Option B:Option C:Option D:VIEW SOLUTION
- Question 80
If then on the interval [0, π] which of the following is correct?Option A: tan [f(x)], where [·] is the greatest integer function, and are both continuousOption B: tan [f(x)], where [·] is the greatest integer function, and f–1(x) are both continuousOption C: tan [f(x)], where [·] is the greatest integer function, and are both discontinuousOption D: tan [f(x)], where [·] is the greatest integer function, is discontinuous but is continuousVIEW SOLUTION
- Question 81
The order and degree of the differential equation are respectivelyOption A: 3 and 2Option B: 2 and 2Option C: 2 and 3Option D: 1 and 3VIEW SOLUTION
- Question 82
If then is equal toOption A: for allOption B: for allOption C: for allOption D: None of the aboveVIEW SOLUTION
- Question 83
The set of all points, where the function is differentiable, isOption A: (0, ∞)Option B: (–∞, ∞)Option C: (–∞, 0) ∪ (0, ∞)Option D: (–1, ∞)VIEW SOLUTION
- Question 84
Match List-I with List-II and select the correct answer using the code given below the lists:
List–I
(Function)List–II
(Maximum value)A. sin x + cos x 1. B. 3 sin x + 4 cos x 2. C. 2 sin x + cos x 3. 5 D. sin x + 3 cos x 4.
Code:Option A:A B C D 2 3 1 4 Option B:A B C D 2 3 4 1 Option C:A B C D 3 2 1 4 Option D:VIEW SOLUTIONA B C D 3 2 4 1
- Question 85
If then f(x) isOption A: continuous but not differentiable at x = 0Option B: differentiable at x = 0Option C: not continuous at x = 0Option D: None of the aboveVIEW SOLUTION
- Question 86
Which of the following graphs represents the function ?Option A:Option B:Option C:Option D: None of the aboveVIEW SOLUTION
- Question 87
Let , where [x] denotes the integral part of x. Then the value of isOption A: 251Option B: 250Option C: 1VIEW SOLUTION
- Question 88
is equal toOption A: x(ln x)–1 + cOption B: x(ln x)–2 + cOption C: x(ln x) + cOption D: x(ln x)2 + cVIEW SOLUTION
- Question 89
A cylindrical jar without a lid has to be constructed using a given surface area of a metal sheet. If the capacity of the jar is to be maximum, then the diameter of the jar must be k times the height of the jar. The value of k isOption A: 1Option B: 2Option C: 3Option D: 4VIEW SOLUTION
- Question 90
- Question 91
Let g be the greatest integer function. Then the function f(x) = (g(x))2 – g(x) is discontinuous atOption A: all integersOption B: all integers except 0 and 1Option C: all integers except 0Option D: all integers except 1VIEW SOLUTION
- Question 92
The differential equation of the minimum order by eliminating the arbitrary constants A and C in the equation y = A[sin(x + C) + cos(x + C)] isOption A: y'' + (sin x + cos x)y' = 1Option B: y'' = (sin x + cos x)y'Option C: y'' = (y')2 + sinxcosxOption D: y'' + y = 0VIEW SOLUTION
- Question 93
Consider the following statements:
Statements I:
x > sin x for all x > 0
Statement II:
f(x) = x – sin x is an increasing function for all x > 0
Which one of the following is correct in respect of the above statements?Option A: Both Statement I and Statement II are true and Statement II is the correct explanation of Statement I.Option B: Both Statement I and Statement II are true and Statement II is not the correct explanation of Statement IOption C: Statement I is true but Statement II is falseOption D: Statement I is false but Statement II is trueVIEW SOLUTION
- Question 94
- Question 95
- Question 96
- Question 97
- Question 98
If , then which of following is correct?Option A: A2 = −2AOption B: A2 = −4AOption C: A2 = −3AOption D: A2 = 4AVIEW SOLUTION
- Question 99
Geometrically, Re (z2 – i) = 2, where and Re is the real part, representsOption A: circleOption B: ellipseOption C: rectangular hyperbolaOption D: parabolaVIEW SOLUTION
- Question 100
If p + q + r = a + b + c = 0, then the determinant equalsOption B: 1Option C: pa + qb + rcOption D: pa + qb + rc + a + b + cVIEW SOLUTION
- Question 101
A committee of two persons is selected from two men and two women. The probability that the committee will have exactly one woman isOption A:Option B:Option C:Option D:VIEW SOLUTION
- Question 102
Let a die be loaded in such a way that even faces are twice likely to occur as the odd faces. What is the probability that a prime number will show up when the die is tossed?Option A:Option B:Option C:Option D:VIEW SOLUTION
- Question 103
Let the sample space consist of non-negative integers up to 50. X denotes the numbers which are multiples of 3 and Y denotes the odd numbers. Which of the following is/are correct?
1.
2.
Select the correct answer using the code given below.Option A: 1 onlyOption B: 2 onlyOption C: Both 1 and 2Option D: Neither 1 nor 2VIEW SOLUTION
- Question 104
For two events A and B, let and . What is equal to?Option A:Option B:Option C:Option D:VIEW SOLUTION
- Question 105
Consider the following statements:
1. Coefficient of variation depends on the unit of measurement of the variable.
2. Range is a measure of dispersion.
3. Mean deviation is the least when measured about median.
Which of the above statements are correct?Option A: 1 and 2 onlyOption B: 2 and 3 onlyOption C: 1 and 3 onlyOption D: 1, 2 and 3VIEW SOLUTION
- Question 106
Given that the arithmetic mean and standard deviation of a sample of 15 observations are 24 and 0, respectively. Then which one of the following is the arithmetic mean of the smallest five observations in the data?Option B: 8Option C: 16Option D: 24VIEW SOLUTION
- Question 107
Which of the following can be considered as the appropriate pair of values of regression coefficient of y on x and regression coefficient of x on y?Option A: (1, 1)Option B: (–1, 1)Option C:Option D:VIEW SOLUTION
- Question 108
Let A and B be two events with P(A) = , P(B) = and . What is equal to?Option A:Option B:Option C:Option D:VIEW SOLUTION
- Question 109
In a binomial distribution, the mean is and the variance is . What is the probability that X = 2?Option A:Option B:Option C:Option D:VIEW SOLUTION
- Question 110
The probability that a ship safely reaches a port is . The probability that out of 5 ships, at least 4 ships would arrive safely isOption A:Option B:Option C:Option D:VIEW SOLUTION
- Question 111
What is the probability that at least two persons out of a group of three persons were born in the same month (disregard the year)?Option A:Option B:Option C:Option D:VIEW SOLUTION
- Question 112
It is given that = 10, = 90, σX = 3, σY = 12 and rXY = 0.8. The regression equation of X and Y isOption A: Y = 3.2X + 58Option B: X = 3.2Y + 58Option C: X = −8 + 0.2YOption D: Y = –8 + 0.2XVIEW SOLUTION
- Question 113
If P(B) = , and , then what is P(B ∩ C) equal to?Option A:Option B:Option C:Option D:VIEW SOLUTION
- Question 114
The following table gives the monthly expenditure of two families:
Expenditure (in Rs) Items Family A Family B Food 3,500 2,700 Clothing 500 800 Rent 1,500 1,000 Education 2,000 1,800 Miscellaneous 2,500 1,800
In constructing a pie diagram to the above data, the radii of the circles are to be chosen by which of the following ratios?Option A: 1 : 1Option B: 10 : 9Option C: 100 : 91Option D: 5 : 4VIEW SOLUTION
- Question 115
If a variable takes values 0, 1, 2, 3, ..… , n with frequencies 1, C(n, 1), C(n, 2), C(n, 3), ….. , C(n, n) respectively, then the arithmetic mean isOption A: 2nOption B: n + 1Option C: nOption D:VIEW SOLUTION
- Question 116
In a multiple choice test, an examinee either knows the correct answer with probability p, or guesses with probability 1 – p. The probability of answering a question correctly is , if he or she merely guesses. If the examinee answers a question correctly, the probability that he or she really knows the answer isOption A:Option B:Option C:Option D:VIEW SOLUTION
- Question 117
If x1 and x2 are positive quantities, then the condition for the difference between arithmetic mean and the geometric mean to be greater than 1 isOption A:Option B:Option C:Option D:VIEW SOLUTION
- Question 118
Consider the following statements:
1. Variance is unaffected by the change of origin and change of scale.
2. Coefficient of variance is independent of the unit of observations.
Which of the statements given above is/are correct?Option A: 1 onlyOption B: 2 onlyOption C: Both 1 and 2Option D: Neither 1 nor 2VIEW SOLUTION
- Question 119
Five sticks of lengths 1, 3, 5, 7 and 9 feet are given. Three of these sticks are selected at random. What is the probability that the selected sticks can form a triangle?Option A: 0.5Option B: 0.4Option C: 0.3VIEW SOLUTION
- Question 120
The coefficient of correlation when coefficients of regression are 0.2 and 1.8 isOption A: 0.36Option B: 0.2Option C: 0.6Option D: 0.9VIEW SOLUTION