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According to a​ study, 66​% of all males between the ages of 18 and 24 live...

According to a​ study, 66​% of all males between the ages of 18 and 24 live at home. ​ (Unmarried college students living in a dorm are counted as living at​ home.) Suppose that a survey is administered and 140 of 207 respondents indicated that they live at home.​ (a) Use the normal approximation to the binomial to approximate the probability that at least 140 respondents live at home.​ (b) Do the results from part​ (a) contradict the​ study?

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chances it will be at least p=0.66 na 207 so M= n.P=207 x 0.66 = 136.62 Sh.p.11) = 1207 207 80.6680.34 =6.82 plx>140) By Norm

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