Q5 of 26 Page 14


xi

fi

f ixi

|xi - |

fi|xi - |

  5

7

35

7

49

10

4

40

2

  8

15

6

90

3

18

20

3

60

8

24

25

5

75

13  

65

Total

25   

300  

164  

= 300/25 = 12
M.D () = 164/25 = 6.56

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Find the mean deviation from the mean for the following data:13, 17, 16, 14, 11, 13, 10, 16, 11, 18, 12, 17

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