# Question

In a photographic process, the developing time of prints may be looked upon as a random variable having the normal distribution with µ = 15.40 seconds and σ = 0.48 second. Find the probabilities that the time it takes to develop one of the prints will be

(a) At least 16.00 seconds;

(b) At most 14.20 seconds;

(c) Anywhere from 15.00 to 15.80 seconds.

(a) At least 16.00 seconds;

(b) At most 14.20 seconds;

(c) Anywhere from 15.00 to 15.80 seconds.

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