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17. For each graph below, find the area of the shaded region. The graph depicts the standard normal distribution with a mean of 0 and a standard deviation of 1. (6 pts) a The area shaded is below z = -0.58 Area: b ) The area shaded is above z = 1.76 Area: 18. For the graph below, find z-score that corresponds to the area to the left equal to 0.2912. The graph depicts the standard normal distribution with a mean of 0 and standard deviation of 1. 0.2912 19. The weights of college football players are normally distributed with a mean of 200 pounds and a standard deviation of 50 pounds. If a college football player is randomly selected, find the probability that the player weighs between 170 and 220 pounds. 4pts 20. Women's heights are normally distributed with a mean of 63.6 inches and a standard deviation of 2.5 inches. If a group of 50 women are randomly selected, find the probability that the group has a mean height of less than 62.9 inches. (4 pts)