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CBSE Class 10 Answered

If the mean of the following distribution is 27, then find the value of p. Class 0-10 10-20 20-30 30-40 40-50 Frequency 8 p 12 13 10
Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM
answered-by-expert Expert Answer

Class

Class Marks (x)

Frequency (f)

fx

0-10

5

8

40

10-20

15

p

15p

20-30

25

12

300

30-40

35

13

455

40-50

45

10

450

= 43 + p

= 1245 + 15p

Mean =

 

Answered by | 04 Jun, 2014, 03:23: PM

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