33. Calculate the arithmetic mean from the following data using
A. Direct Method
B. Assumed Mean Method
X 5 10 15 20 25
30
35
40
f
5
7
9
10
8
6
5
2
Answers
Answered by
0
Answer:
x f fx
5 4 20
10 5 50
15 7 105
20 4 80
25 3 75
30 2 60
Total N=25 ∑fx=390
Arithmetic Mean,
x
ˉ
=
N
∑fx
=
25
390
=15.6
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