Business Statistics MCQS With Answers 41 to 50 - Ask By People

 

Business Statistics

41. The measures used to calculate the variation present among the observations relative to their average is called:

1. Coefficient of kurtosis
2. Absolute measures of dispersion
3. Quartile deviation
4. Relative measures of dispersion

Correct answer: (D)
Relative measures of dispersion

42. If there are many extreme scores on all examination, the dispersion is:

1. Large
2. Small
3. Normal
4. Symmetric

Correct answer: (A)
Large

43. In quality control of manufactured items, the most common measure of dispersion is:

1. Range
2. Average deviation
3. Standard deviation
4. Quartile deviation

Correct answer: (A)
Range

44. If Y = aX ± b, where a and b are any two numbers and a ∦ 0, then the range of Y values will be:

1. Range(X)
2. a range(X) + b
3. a range(X) - b
4. ∣a∣ range(X)

Correct answer: (D)
∣a∣ range(X)

45. Which measure of dispersion can be computed in case of open-end classes?

1. Standard deviation
2. Range
3. Quartile deviation
4. Coefficient of variation

Correct answer: (C)
Quartile deviation

46. If Y = aX ± b, where a and b are any two numbers but a ∦ 0, then M.D(Y) is equal to:

1. M.D(X)
2. M.D(X) ± b
3. ∣a∣ M.D(X)
4. M.D(Y) + M.D(X)

Correct answer: (C)
∣a∣ M.D(X)

47. If the dispersion is small, the standard deviation is:

1. Large
2. Zero
3. Small
4. Negative

Correct answer: (C)
Small

48. The standard deviation one distribution dividedly the mean of the distribution and expressing in percentage is called:

1. Coefficient of Standard deviation
2. Coefficient of skewness
3. Coefficient of quartile deviation
4. Coefficient of variation

Correct answer: (D)
Coefficient of variation

49. If Y = aX + b, where a and b are any two numbers but a ∦ 0, then S.D(Y) is equal to:

1. S.D(X)
2. a S.D(X)
3. ∣a∣ S.D(X)
4. a S.D(X) + b

Correct answer: (C)
∣a∣ S.D(X)

50. Standard deviation is always calculated from:

1. Mean
2. Median
3. Mode
4. Lower quartile

Correct answer: (A)
Mean