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A bank's loan officer rates applicants for credit. The ratings are normally distributed with a mean of 200 and standard deviation of 50. If an

A bank's loan officer rates applicants for credit. The ratings are normally distributed with a mean of 200 and standard deviation of 50. If an applicant is randomly selected find the probability that the rating is: A) between 200 and 275. B) Above 178. C) Find the score which separates the lower 60% from the top 40%.

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