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a bank's loan officer rates applicants for credit. the ratings are normally distributed with a mean of 175 and a standard deviation of 15. if an applicant is randomly selected, find the probability of a rating that is between 150 and 200

  • statistic -

    Z = (score-mean)/SD

    Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion related to the Z scores.

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