Statistics Test

Result

Statistics Test - 37

Score
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Rank
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TIME Taken - -

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Weekly Quiz Competition

Question 1
4 / -1

A
S.D. < M.D.

B
S.D. > M.D.

C
S.D. = M.D.

D
Nothing can be said in general about the relationship of S.D. and M.D.

Solution
Question 2
4 / -1

A

B

C

D

Solution
Question 3
4 / -1

The variance of α, β and γ is 9, then variance of 5α, 5β and 5γ is

A
45

B
9/5

C
5/9

D
225

Solution
Question 4
4 / -1

A batsman scores runs in 10 innings 38, 70, 48, 34, 42, 55, 63, 46, 54, 44, then the mean deviation is

A
8.6

B
6.4

C
10.6

D
9.6

Solution
Question 5
4 / -1

A
81

B
7.6

C
9

D
2.26

Solution
Question 6
4 / -1

A
78.00

B
188.66

C
177.33

D
8.33

Solution
Question 7
4 / -1

The quartile deviation of daily wages (in Rs.) of 7 persons given below 12, 7, 15, 10, 17, 19, 25 is

A
14.5

B
5

C
9

D
4.5

Solution
Question 8
4 / -1

Karl-Pearson\'s coefficient of skewness of a distribution is 0.32. Its S.D. is 6.5 and mean 39.6. Then the median of the distribution is given by

A
28.61

B
38.81

C
29.13

D
28.31

Solution
Question 9
4 / -1

A
n

B

C

D

Solution
Question 10
4 / -1

For two data sets, each of size 5, the variances are given to be 4 and 5 and the corresponding means are given to be 2 and 4, respectively. The variance of the combined data set is

A

B

C
6

D

Solution