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It is known that the extension of a steel rod under a certain load is normally...

It is known that the extension of a steel rod under a certain load is normally distributed with an average of 0.05 inches and a standard deviation of 0.01 inches. elongation

a) What is the probability that it is more than 0.1 inch?
b) What is the probability of being less than 0.04 inch?
c) What is the probability that it is between 0.025 and 0.065 inch?

Math   Statistics-And-Probability   
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