Asked by Anonymous
8.value:
10.00 points
The fracture strength of a certain type of manufactured glass is normally distributed with a mean of 509 MPa with a standard deviation of 17 MPa.
(a)
What is the probability that a randomly chosen sample of glass will break at less than 509 MPa? (Round your answer to 2 decimal places.)
10.00 points
The fracture strength of a certain type of manufactured glass is normally distributed with a mean of 509 MPa with a standard deviation of 17 MPa.
(a)
What is the probability that a randomly chosen sample of glass will break at less than 509 MPa? (Round your answer to 2 decimal places.)
Answers
Answered by
MathMate
In a normally distributed random variable, the probability of X≤μ is exactly 0.5, since the normal distribution curve is symmetrical.
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