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Please help me to find the mean deviation from median........?

0 votes

asked Jun 25, 2014 in PRECALCULUS by anonymous

2 Answers

0 votes
Class interval

image

image

2 - 8

5

 

5

5

- 21.8 21.8
12 - 16

15

8

13

- 11.8 11.8

22 - 28

25

15

28

- 1.8 1.8

32 - 38

35

16

44

8.2 8.2

42 - 48

45

6

50

18.2 18.2

 

50

 

 

  61.8

 

answered Jun 27, 2014 by david Expert
0 votes

Continuous....

image

The median group is " 22 - 28 " .

We need to estimate a single median value use the formula.

image

Where L is lower class boundary of the group containing the median.

N is the total number of data.

image  is cumulative frequency of the groups before the median group.

image is the frequency of the median group.

image is the group width.

image

image

image

image

image

image

image

The formula to calculate mean deviation from medianimage

= 61.8/50

= 1.236

Mean deviation from median = 1.236.

answered Jun 27, 2014 by david Expert

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