Q6 of 79 Page 24

Find the missing value of p, for the following distribution whose mean is 12.58.

x:

5

8

10

12

p

20

25

f :

2

5

8

22

7

4

2

Given, mean = 12.58

= 12.58

7p = 629 – 524

7p = 105

p =

= 15

If the mean of the following data is 15. Find p.

x :	5	10	15	20	25
f :	6	p	6	10	5

Find the value of p for the following distribution whose mean is 16.6.

x:	8	12	15	p	20	25	30
f :	12	16	20	24	16	8	4

Find the missing frequency (p) for the following distribution whose mean is 7.68.

x:	3	5	7	9	11	13
f :	6	8	15	p	8	4

Find the value of p, if the mean of the following distribution is 20.

x:	15	17	19	20+p	23
f :	2	3	4	5p	6

Questions · 79

24. Measures of Central Tendency

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 1 2 3 4 5 6 7 8 9 10 11 12 1 2 3 4 5 6 7 8 9 10 11 12 13 1 2 3 4 5 1 2 3 4 5 6 7 8 9 10 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

Find the missing value of p, for the following distribution whose mean is 12.58.x:581012p2025f :25822742