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Question: sy is the class midpoint in kpsi and f is...

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The tensile offset yield strength of AlSI 1137 cold-drawn steel is reported histographically as follows. Assume a lognormal distribution $(kpsi) 93 | 95 | 97 | 99 | 101 | 103 | 105 | 107 | 109 | 111 f 22 26 37 18 1194341 For a safety factor of 1.5, estimate the percentage of components made of this material that plastically deform at a stress of 100 kpsi.

Sy is the class midpoint in kpsi and f is the number in each class.

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