An engineer is going to redesign an ejection seat for an airplane. The seat was designed for pilots weighing between 150lb and 191lb. The new population of pilots has normally distributed weights with a mean of 157lb and a standard deviation of 32.8 lb. A. If a pilot is randomly​ selected, find the probability that his weight is between150lb and 191lb.   The probability is approximately_____

Features Features Normal distribution is characterized by two parameters, mean (µ) and standard deviation (σ). When graphed, the mean represents the center of the bell curve and the graph is perfectly symmetric about the center. The mean, median, and mode are all equal for a normal distribution. The standard deviation measures the data's spread from the center. The higher the standard deviation, the more the data is spread out and the flatter the bell curve looks. Variance is another commonly used measure of the spread of the distribution and is equal to the square of the standard deviation.