the mean of the following frquency distribution of 125 observation is 22.13. find the missing frequencies
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Step-by-step explanation:
class interval
25-29
30-34 35-39
40-44
45-49
50-54
55-59
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Mid-pointFrequency
Xi
27
32
37
42
47
52
57
f;
14
22
16
6
5
3
4
ΣΕ; = 70
= 36.36
fixi
378
704
592
252
235
156
228
Σfix₁ = 2545b
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