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**mortalcyrax** A cylinder is to be machined to a diameter of 8cm. The Upper specifications limit is 8.2cm and the lower specifications limit is 7.9cm. A certain machine produces cylinders with a mean of 8.1cm with a standard deviation of 0.1cm.

What is the probability of being outside the tolerances for the cylinder?

I know P(X>8.2) and that i then need to convert it to a Z score with z=X-mean/Standard Deviation = z=8.2-8.1/0.1 = 1

I get stuck from there.

Any help would be greatly appreciated