1. Full-time Ph.D. students receive an average of P12837 per year. If the average salaries are normally distributed with a standard deviation of P1500, find these probabilities: (a) the student makes more than P15,000; (b) the student makes less than P12,00o; (c) if there are 250 full-time Ph.D. students, how many stydents make more than P15.000? *
1. Full-time Ph.D. students receive an average of P12837 per year. If the average salaries are normally distributed with a standard deviation of P1500, find these probabilities: (a) the student makes more than P15,000; (b) the student makes less than P12,00o; (c) if there are 250 full-time Ph.D. students, how many stydents make more than P15.000? *
Chapter8: Sequences, Series,and Probability
Section8.7: Probability
Problem 11ECP: A manufacturer has determined that a machine averages one faulty unit for every 500 it produces....
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Transcribed Image Text:1. Full-time Ph.D. students receive an average of P12837 per year. If the average
salaries are normally distributed with a standard deviation of P1500, find these
probabilities: (a) the student makes more than P15,000; (b) the student makes
less than P12,000; (c) if there are 250 full-time Ph.D. students, how many
students make more than P15,000? *
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