BIHAR CGL PRE STATISTICS(Mean Median Mode) QUIZ

Question 1:

Find the range of the data

3, 4, 9, 1, 2, 5, 5, 8, 3, 2, 6, 9, 5

9

5

8

2

Question 2:

Find the mode and median of the 9 consecutive number?

$12,7,8,14,21,23,27,7,11$

12,9

7,9

7,12

11,9

Question 3:

The runs scored by a batsman in 5 ODIs are $31,97,112,63$, and $12 .$ The standard deviation is:

$24.79$

$23.79$

$25.79$

$26.79$

Question 4:

Relationship between mean , median and mode is

Mean = 3 median – 2 mode

Mode-mean = 3(mean – median )

Mode-median = 2( median – mean)

None of these

Question 5:

The range of the data 14, 6, 12, 17, 21, 10, 4, 3 is

16

17

12

18

Question 6:

Arithmetic mean of 10 observations was 45. If each observation is multiplied by 3 then the mean of new observations is

45

450

135

48

Question 7:

Find range for the following data:

$14,9,40,8,1,17,8,7$

40

1

8

39

Question 8:

The average of 32 observations is 38 . If 7 is added to each observation what will be new mean-

45

42

47

44

Question 9:

The mode of the data 3,12,4,6,8,5,4 is:

5

8

4

3

Question 10:

If the mean of $m$ observation out of $n$ observations is $\mathrm{n}$ and the mean of remaining observation is $m$ then what is the mean of all $\mathrm{n}$ observations-

$2 \mathrm{~m}-\frac{\mathrm{m}^{2}}{\mathrm{n}}$

$2 m+\frac{m^{2}}{n}$

$m-\frac{m^{2}}{n}$

$\mathrm{m}+\frac{\mathrm{m}^{2}}{\mathrm{n}^{2}}$

BIHAR CGL PRE STATISTICS(Mean Median Mode) QUIZ - 18

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BIHAR CGL PRE STATISTICS(Mean Median Mode) QUIZ - 18

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