The modal class of the given is
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Answer:
=39.357 (rounded to 2 decimals)
Mean age ≅39.36
Step-by-step explanation:
Now we can prepare table for calculating mean
Age continuous age midpoint x No of persons f fx
25−29
30−34
35−39
40−44
45−49
50−54
55−59 24.5−29.5
29.5−34.5
34.5−39.5
39.5−44.5
44.5−49.5
49.5−54.5
54.5−59.5 27
32
37
42
47
52
57 4
14
22
16
6
5
3 108
448
814
672
282
260
171
∑f=70 ∑f
x
=2755
∴mean(
x
ˉ
)=
∑f
∑f
x
=
70
2755
=39.357 (rounded to 2 decimals)
Mean age ≅39.36
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