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Find the Mean Deviation About the Mean for the Data 10 30 50 70 90 - CBSE (Arts) Class 11 - Mathematics

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Question

Find the mean deviation about the mean for the data

xi 10 30 50 70 90
fi 4 24 28 16 8

 

Solution

xi

fi

fi xi

`|X_i - barX|`

`f_i |X_i - barX|`

10

4

40

40

160

30

24

720

20

480

50

28

1400

0

0

70

16

1120

20

320

90

8

720

40

320

 

80

4000

 

1280

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Solution Find the Mean Deviation About the Mean for the Data 10 30 50 70 90 Concept: Mean Deviation.
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