Question: A study on college students found that the men had an average weight of about 66 kg and an SD of about 9 kg. The

A study on college students found that the men had an average weight of about 66 kg and an SD of about 9 kg. The women had an average weight of about 55 kg and an SD of 9 kg.

(a) Find the averages and SDs, in pounds (1 kg = 2.2 lb).

(b) Just roughly, what percentage of the men weighed between 57 kg and 75 kg?

(c) If you took the men and women together, would the SD of their weights be smaller than 9 kg, just about 9 kg, or bigger than 9 kg?

Why? p-968

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