Q4 of 79 Page 24

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

x :

5

10

15

20

25

f :

6

p

6

10

5

Given, mean = 15

= 15

15p – 10p = 445 – 405

5p = 40

p =

= 8

Find the mean of the following data:

x:	19	21	23	25	27	29	31
f :	13	15	16	18	16	15	13

Find the mean of the following data is 20.6. Find the value of p.

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 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

Questions · 79

24. Measures of Central Tendency

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If the mean of the following data is 15. Find p.x :510152025f :6p6105