Math, asked by mxnarco, 6 months ago

the mean of the following data is 18.75.Find the value of p. 10-5 , 5-10 , p-7 , 25-8 , 30-2.​

Answers

Answered by ghoshsubhasish168
4

Step-by-step explanation:

Frequency distribution table:

xi f

i

f

i

x

i

10 5 50

15 10 150

p 7 7p

25 8 200

30 2 60

N=Σf

i

=32

Σf

i

x

i

=460+7p

Mean

x

=

N

Σf

i

x

i

∴18.75=

32

460+7p

∴600=460+7p

∴p=

7

600−460

∴p=20

Answered by 8472
10

Answer:

hope it helps......

..

.

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