Calculate the mean for the following distributions:
Class interval 15-25 25-35 35-45 45-55 55-65
Frequency 6 10 8 12 4
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Calculate the mean for the following distributions:
Class interval 15-25 25-35 35-45 45-55 55-65
Frequency 6 10 8 12 4
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Answer:
A = 50 and h = 10
Mean = A + h x (ΣfiuiNΣfiuiN)
= 50 + 10 x (−240−240)
= 50 – 0.5
= 49.5
Answer:
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