5. The weight X, of a widget has the normal distribution with the mean of 50g and standard deviation of 0.8g. (a) Find the probability that a single widget weighs between 49.5 and 50.5g. (b) Find the 85th percentile of the weights. (c) Let be the average weight of 30 widgets. Find the mean and standard deviation of X. Assume that the weights are independent. (d) Approximate the probability that X is between 49.5 and 50.5g. Compare to part (a)

5. The weight X, of a widget has the normal distribution with the mean of 50g and standard deviation of 0.8g. (a) Find the probability that a single widget weighs between 49.5 and 50.5g. (b) Find the 85th percentile of the weights. (c) Let be the average weight of 30 widgets. Find the mean and standard deviation of X. Assume that the weights are independent. (d) Approximate the probability that X is between 49.5 and 50.5g. Compare to part (a)

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.4: Distributions Of Data

Problem 22PFA

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