Measures of Dispersion Statistics Mcqs - Set 1

1)   Mean deviation, Variance and Standard Deviation of the values 4,4,4,4,4,4 is_______________?

a. 4
b. 8
c. 2
d. 0
Answer  Explanation 

ANSWER: 0

Explanation:
No explanation is available for this question!


2)   The variance of 5 numbers is 10. If each number is divided by 2, then variance of new number is_____________?

a. 20
b. 0
c. 2.5
d. 0
Answer  Explanation 

ANSWER: 2.5

Explanation:
No explanation is available for this question!


3)   The mean deviation of the values, 18, 12, 15, is_______________?

a. 6
b. Zero
c. 3
d. 2
Answer  Explanation 

ANSWER: 2

Explanation:
No explanation is available for this question!


4)   Lowest value of variance can be____________?

a. 1
b. -1
c. 3
d. 0
Answer  Explanation 

ANSWER: 0

Explanation:
No explanation is available for this question!


5)   If the standard deviation of the values 2,4,6,8 is 2.33, then the standard deviation of the values 4,6,8,10 is_____________?

a. 0
b. 2.58
c. 4.66
d. 2.33
Answer  Explanation 

ANSWER: 2.58

Explanation:
No explanation is available for this question!


6)   If Y=-8X – 5 and SD of X is 3, then SD of Y is______________?

a. 8
b. 3
c. 24
d. None of these
Answer  Explanation 

ANSWER: 24

Explanation:
No explanation is available for this question!


7)   Variance remains unchanged by change of_____________?

a. Origin
b. Scale
c. Both
d. None of these
Answer  Explanation 

ANSWER: Origin

Explanation:
No explanation is available for this question!


8)   If all values are same then the measure of dispersion will be?

a. 1
b. 0
c. Mean
d. Mode
e. Median
Answer  Explanation 

ANSWER: 0

Explanation:
No explanation is available for this question!


9)   The shape of the symmetrical distribution is _______?

a. U- Shaped
b. J- Shaped
c. Bell- Shaped
d. None of these
Answer  Explanation 

ANSWER: Bell- Shaped

Explanation:
No explanation is available for this question!


10)   The sum of absolute deviations from median is _____?

a. Zero
b. Positive
c. Least
d. None of these
Answer  Explanation 

ANSWER: Least

Explanation:
No explanation is available for this question!