Question

A Bollywood casting company is selecting a group of extras for a movie. The ages of the first

20 mean to be interviewed are

50 56 49 52 57 56 57 56 56 59 54 55 61 60 51 59 62 52 54 49

The director of the movie wants men whose ages are fairly tightly grouped around 55 years.

Being a statistics buff of sorts, the director suggests that a standard deviation of 3 years would

be acceptable. Does this group of extras qualify?
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Answer 1

Answer:

we have 65366of 6rt556