An article suggested that yield strength (ksi) for A36 grade steel is normally distributed with u = 45 and a = 5.0. (a) What is the probability that yield strength is at most 39? Greater than 64? (Round your answers to fou at most 39 greater than 64 (b) What yield strength value separates the strongest 75% from the others? (Round your answer to three ksi You may need to use the appropriate table in tie Appendix of Tables to answer this question. Need Heln? Dead it Watch It Talk to a Tutor
An article suggested that yield strength (ksi) for A36 grade steel is normally distributed with u = 45 and a = 5.0. (a) What is the probability that yield strength is at most 39? Greater than 64? (Round your answers to fou at most 39 greater than 64 (b) What yield strength value separates the strongest 75% from the others? (Round your answer to three ksi You may need to use the appropriate table in tie Appendix of Tables to answer this question. Need Heln? Dead it Watch It Talk to a Tutor
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:An article suggested that yield strength (ksi) for A36 grade steel is normally distributed with u = 45 and o = 5.0.
(a) What is the probability that yield strength is at most 39? Greater than 64? (Round your answers to fou
at most 39
greater than 64
(b) What yield strength value separates the strongest 75% from the others? (Round your answer to three
ksi
You may need to use the appropriate table in tie Appendix of Tables to answer this question.
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