The finished inside diameter of a piston ring is normally distributed with a mean of 10 centimeters and a standard deviation of 0.03 centimeter.

5. The finished inside diameter of a piston ring is normally distributed with a mean of 10

centimeters and a standard deviation of 0.03 centimeter.

(a) What is the probability that a piston ring will have an inside diameter between 9.97 and

10.03 centimeters?

(b) Above what value of inside diameter will 10.03% of the piston rings fall?

(c) Find the probability that at least 3 of the next 10 piston rings will have an inside diameter

exceeding 10.075cm.

I need a 2nd opinion on the answers i already have. Thank you