Calculate all the measures of variation
|
Calculate all the measures of variation
|
|
Class Interval
|
Frequency
|
|
20-30
30-40
40-50
50-60
60-70
|
18
35
65
32
10
|
|
Class interval
|
Frequency
(f)
|
Mid class value
(x)
|
xf
|
Less than cumulative frequency
|
|
|
|
|
|
|
|
20-30
30-40
40-50
50-60
60-70
|
18
35
65
32
10
|
25
35
45
55
65
|
450
1225
2925
1760
650
|
18
53
118
150
160
|
18.8125
8.8125
1.1875
11.1875
21.1875
|
338.6250
308.4375
77.1875
358.0000
211.8750
|
19.1538
9.1538
20
10.8462
20.8462
|
344.7684
320.3830
1300
347.0784
208.4620
|
353.9101
77.6601
449.4
125.1601
448.9101
|
6370.3818
2718.1035
29211
4005.1232
4489.1010
|
|
Total
|
N=160
|
--
|
7010
|
----
|
----
|
1294.1250
|
-----
|
1275.6948
|
-----
|
17674.3660
|
|
Last modified: Wednesday, 22 August 2012, 6:27 AM
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