following is the distribution of marks obtain by 60 students: calculate the arithmetic mean
Marks No.of Students
more than 0 60
more than 10 56
more than 20 40
more than 30 20
more than 40 10
more than 50 3
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Answered by
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Answer:
Mean = A + ∑fd/n * h
= 35.5 + (-316/189) * 10
= 35.5 + (-1.672)* 10
= 35.5 - 16.7196
= 18.7804
Hope this will be helpful.
Refer to the data picture below
Mean = A + ∑fd/n * h
= 35.5 + (-316/189) * 10
= 35.5 + (-1.672)* 10
= 35.5 - 16.7196
= 18.7804
Hope this will be helpful.
Refer to the data picture below
Attachments:
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