Calculate the arithmetic mean of the following
grouped distribution by shortcut method. Class =
10-30 ,30-50 ,50-70 ,70-90, 90-110 ,110-130 Frequency=
5 ,8 ,12, 20 ,3, 2
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Answer:
hi bro
Step-by-step explanation:
mean=3280/50
=65.6
please mark it as brainlest
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