Q. 2 A total of 58 AISI 1018 cold-drawn steel bars were tested to determine the 0.2 percent offset yield strength Sy. The results are Sy, kpsi 64 68 f 2 72 76 80 84 88 92 669 19 10 4 2 Where Sy is the class midpoint and f is the class frequency. Estimate the mean and 250

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Q. 2 A total of 58 AISI 1018 cold-drawn steel bars were tested to determine the 0.2 percent
offset yield strength Sy. The results are
Sy, kpsi
f
64 68 72 76 80 84 88 92
2 6
69
19 10 4 2
Where Sy is the class midpoint and f is the class frequency. Estimate the mean and
standard deviation of Sy, and its probability distribution function (PDF) assuming a
normal distribution
Transcribed Image Text:Q. 2 A total of 58 AISI 1018 cold-drawn steel bars were tested to determine the 0.2 percent offset yield strength Sy. The results are Sy, kpsi f 64 68 72 76 80 84 88 92 2 6 69 19 10 4 2 Where Sy is the class midpoint and f is the class frequency. Estimate the mean and standard deviation of Sy, and its probability distribution function (PDF) assuming a normal distribution
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