Business Statistics and Research Methods MCQ Questions and Solutions with Explanations

Section 1 Section 2 Section 3 Section 4 Section 5 Section 6 Section 7 Section 8 Section 9 Section 10 Section 11 Section 12

41.
Which of the following relating to normal distribution are not correct?
(i) Co-efficient of skewness is three.
(ii) It is mesokurtic.
(iii) Mean deviation for it is $$\frac{2}{3}$$σ.
(iv) µ ± 2σ covers 94.45% area.
(v) Mean, median and mode are equal.
(vi) The standard normal variate z has mean one and SD zero.

A. (i), (iii) and (vi)

B. (iii), (iv) and (v)

C. (i), (iii) and (v)

D. (i), (iii) and (iv)

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42.
If A is a perfect subset of B and P(a < Pb), then P(B - A) is equal to:

A. P(a)/P(b)

B. P(a) × P(b)

C. P(a) + P(b)

D. P(b) - P(a)

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43.
The income of 5 persons are as follows

Person Income per month (Rs.)

Ram 1,500

Shyam 1,700

Mohan 2,000

Aryan 5,000

Krishna 6,000

Types of above series . . . . . . . .

A. individual series

B. discrete series

C. continuous series

D. time series

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44.
Under binomial distribution, a random experiment performed repeatedly . . . . . . . . and . . . . . . . . number of times.

A. infinite, fixed

B. finite, fixed

C. infinite, variable

D. finite, variable

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45.
Classification of the students of a college in two categories 'rural' and 'urban' is called

A. Qualitative classification

B. Quantitative classification

C. Geographical classification

D. None of these

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46.
The correlation coefficient will have a positive sign when

A. X is increasing and Y is decreasing

B. Both X and Y are increasing

C. X is decreasing and Y is increasing

D. There is not change in the values of X and Y

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47.
In a moderately asymmetrical distribution, the mode and mean are 42 and 40, respectively. The median is

A. 39

B. 40.67

C. 38

D. 41.02

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48.
The coefficient of correlation:

A. is the square of the coefficient of determination

B. is the square root of the coefficient of determination

C. is the same as r-square

D. can never be negative

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49.
If the coefficient of determination is equal to 1, then the correlation coefficient:

A. must also be equal to 1

B. can be either -1 or +1

C. can be any value between -1 to +1

D. must be -1

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50.
Statistics means

A. Data only

B. Statistical method only

C. Both of the above

D. None of the above

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1 2 3 4 5 6 7 8 9 10

Person	Income per month (Rs.)
Ram	1,500
Shyam	1,700
Mohan	2,000
Aryan	5,000
Krishna	6,000

Business Statistics and Research Methods MCQ Questions and Solutions with Explanations | Commerce

Answer & Solution

42. If A is a perfect subset of B and P(a < Pb), then P(B - A) is equal to:

Answer & Solution

43. The income of 5 persons are as follows Person Income per month (Rs.) Ram 1,500 Shyam 1,700 Mohan 2,000 Aryan 5,000 Krishna 6,000 Types of above series . . . . . . . .

Answer & Solution

44. Under binomial distribution, a random experiment performed repeatedly . . . . . . . . and . . . . . . . . number of times.

Answer & Solution

45. Classification of the students of a college in two categories 'rural' and 'urban' is called

Answer & Solution

46. The correlation coefficient will have a positive sign when

Answer & Solution

47. In a moderately asymmetrical distribution, the mode and mean are 42 and 40, respectively. The median is

Answer & Solution

48. The coefficient of correlation:

Answer & Solution

49. If the coefficient of determination is equal to 1, then the correlation coefficient:

Answer & Solution

50. Statistics means

Answer & Solution

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42.
If A is a perfect subset of B and P(a < Pb), then P(B - A) is equal to:

43.
The income of 5 persons are as follows

Person Income per month (Rs.)

Ram 1,500

Shyam 1,700

Mohan 2,000

Aryan 5,000

Krishna 6,000

Types of above series . . . . . . . .

44.
Under binomial distribution, a random experiment performed repeatedly . . . . . . . . and . . . . . . . . number of times.

45.
Classification of the students of a college in two categories 'rural' and 'urban' is called

46.
The correlation coefficient will have a positive sign when

47.
In a moderately asymmetrical distribution, the mode and mean are 42 and 40, respectively. The median is

48.
The coefficient of correlation:

49.
If the coefficient of determination is equal to 1, then the correlation coefficient:

50.
Statistics means