|
Classes |
xi |
fi |
c.f. |
|xi - |
fi|xi - |
|
15.5-20.5 |
18 |
5 |
5 |
|
100 |
|
20.5-25.5 |
23 |
6 |
11 |
|
90 |
|
25.5-30.5 |
28 |
12 |
23 |
|
120 |
|
30.5-35.5 |
33 |
14 |
37 |
|
70 |
|
35.5-40.5 |
26 |
63 |
63 |
|
0 |
|
40.5-45.5 |
43 |
12 |
75 |
|
60 |
|
45.5-50.5 |
48 |
16 |
91 |
|
160 |
|
50.5-55.5 |
53 |
9 |
100 |
|
135 |
|
|
|
|
|
35.5 – 40.5
Median = l + 
Median Deviation(M) = 
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