answer question of statistics class 10
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Class
Mid values (x
i
)
Frequency (f
i
)
f
i
x
i
0-20
10
17
170
20-40
30
P
30p
40-60
50
32
1600
60-80
70
24
1680
80-100
90
19
1710
Total=92+p
Mean(
x
)=
∑f
i
∑f
i
x
i
50=
92+p
5160+30p
Therfore,
p=28
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