Asked by Faye
The fracture strength of a certain type of manufactured glass is normally distributed with a mean of 579 MPa with a standard deviation of 14 MPa. (a) What is the probability that a randomly chosen sample of glass will break at less than 579 MPa? (b) More than 590 MPa? (c) Less than 600 MPa?
Answers
Answered by
PsyDAG
Z = (x - mean)/Standard Deviation
Calculate the z scores for the various values. Then look them up in the back of your stats text called something like "areas under normal distribution" to find the probabilities.
I hope this helps.
Calculate the z scores for the various values. Then look them up in the back of your stats text called something like "areas under normal distribution" to find the probabilities.
I hope this helps.
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