18.
qual to 45°
CI
60-80
80-100
100-120
120-140
140-160
160-180
180-200
Frequency
3
10
5
I
Total
1
30
On the basis of above data answer the follo
1) Class size of given data
a) 20
b) 10
c) 30
d) 15
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mxtsktkkt️️pdos54aorsotdo
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