Math, asked by gyreddy, 9 months ago

using direct method calculate the mean of the mean of the following distribution

Answers

Answered by srinidhi1511
2

Answer:

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Answered by simreensaini
3

Answer:

Using direct method

Representing the data into frequency distribution table

x

i

=mid point of each class interval

Class interval No. of workers

(f

i

) x

i

f

i

x

i

0-5 4 2.5 10

5-10 5 7.5 37.5

10-15 6 12.5 75

15-20 7 17.5 122.5

20-25 8 22.5 180

Σf

i

=30 Σf

i

x

i

=425

∴mean=

Σf

i

Σf

i

x

i

=

30

425

=14.16

B)14.16

Step-by-step explanation:

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