(Answered) The line width of for semiconductor manufacturing is

Statistics

The line width of for semiconductor manufacturing is assumed to be normally distributed with a mean of 0.5 micrometer and a standard deviation of 0.05 micrometer.

a) What is the probability that a line width is greater than 0.62 micrometer?

b) What is the probability that a line width is between 0.47 and 0.63 micrometer?

c) The line width of 90% of samples is below what value?

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