MTH 245 Worksheet7-1 Solutions - 1 A bank's loan officer rates applicants for credit The ratings are normally distributed with a mean of 200 and a

MTH 245 Worksheet7-1 Solutions - 1 A bank's loan...

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1)A bank's loan officer rates applicants for credit. The ratings are normally distributed with a mean of 200 and a standard deviation of 50. a)What is the probability that a randomly selected applicant has a rating less than 180? Round to two decimal places. b)What proportion of the ratings are between 225 and 315? Round to two decimal places. . 50 = 2.3
2)The lengths of human pregnancies are normally distributed with a mean of 268 days and a standard deviation of 15 days. a)What is percentage of human pregnancies last more than 285 days? Round to two decimal places.

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