SOLUTION: A bank's loan officer rates applicants for credit. The ratings are normally distributed with a mean of 200 and a standard deviation of 34. If an applicant is randomly selected, fin
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Question 1149471: A bank's loan officer rates applicants for credit. The ratings are normally distributed with a mean of 200 and a standard deviation of 34. If an applicant is randomly selected, find the probability of a rating that is between 209 and 284?
Answer by Boreal(15235) (Show Source): You can put this solution on YOUR website!
z=(x-mean)/sd
this is a z between 9/34 and 84/34
They can be used as decimals or fractions in the calculator or decimals in the table.
probability is 0.3889
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