SOLUTION: At a school in states town there are 50 teachers, 20 of whom are over 40 years old. of the 22 males on staff, 12 are over 40. compare the expected number of older and younger male

Question 860189: At a school in states town there are 50 teachers, 20 of whom are over 40 years old. of the 22 males on staff, 12 are over 40. compare the expected number of older and younger male staff randomly selected group of 10 teachers.
Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!

 

Hi,

		> 40		younger	

male	22	12	55%	10	45%

female	28	8		20	

	50	20		30	

.55*10 = ~6

.45*10 = ~4

 

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