Shows the distribution of salaries of 132 workers in a factory. Calculate the average salary of each worker?
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Answer:
2
N
=100, corresponds to 120−130 class
Median=L+
⎝
⎜
⎜
⎛
fm
2
N
−F
⎠
⎟
⎟
⎞
×h
where F=75
fm=40
L=120
h=10
=120+((
40
100−75
)×10)
=120+
4
25
=126.25.
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