# Project 5 KEY - Math 246 KEY Name Project 5 chapter 7 Use...

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Math 246 KEY Name____________ Project 5 chapter 7 Use complete sentences when appropriate; u se complete mathematical sentences when appropriate. Failure to do so may result in a lower score. S how all your work . Indicate clearly the methods you use, because you will be graded on the correctness of your methods as well as on the accuracy of your results and explanation. If you present parallel solutions , I will grade the lesser of the two. (WARNING: just stating a number will not earn you any points. 1. The waist circumference of males 20 to 29 years old is approximately normally distributed, with mean 92.5 cm and standard deviation of 13.7 cm. A) Determine the proportion of 20-to-29 year old males whose waist circumference is less than 100cm. Interpret. P( waist circumference < 100cm) = P(X < 100cm) = .7079635953 NOTE: waist circumference is approximately the 70.8 th percentile. Interpretation: the proportion of 20-to-29 year old males whose waist circumference is less than 100cm is approximately .708 (or 70.8%) USE: TI normalcdf (-E99, 100, 92.5, 13.7)

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Project 5 KEY - Math 246 KEY Name Project 5 chapter 7 Use...

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