Math, asked by jsingh30037, 7 months ago

find mean deviation about mean for the following data. x1= 5,10,15,20,25 f1=7,4,6,3,5​

Answers

Answered by sravya17
1

hey this is ur answer

i hope it will helps u

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Answered by amitnrw
1

Given : data. X1 (5,10,15,20,25). F1 (7,4,6,3,5)​

To find : mean deviation about mean

Solution:

Value (xi)       frequency(fi)                xi * fi

5                           7                               35

10                          4                               40

15                          6                               90

20                         3                                60

25                          5                               125

    Total               25                              350

Mean = 350/25   =  14

|(xi)-mean |       frequency(fi)                |(xi)-mean | * fi

9                         7                               63

4                         4                               16

1                          6                               6

6                         3                               18

11                          5                              55

    Total               25                            158

Mean Deviation about Mean = 158/25

= 6.32

Mean Deviation about Mean = 6.32

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