Question: An engineer is going to redesign an ejection seat for an airplane. The seat was designed for pilots weighing between 140 lbs. and 201 lbs.

An engineer is going to redesign an ejection seat for an airplane. The seat was designed for pilots weighing between 140 lbs. and 201 lbs. The new population of pilots has normally distributed weights with a mean of 148 lbs. and a standard deviation of 27.5 lbs.

a. If a pilot is randomly selected, find the probability that his weight is between 140 lbs. and 201 lbs.

The probability is approximately?

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