28. 29. 33. 36.

Assume that a randomly selected subject is given a bone density test. Those test scores are normally distributed with a mean of O and a standard deviation of 1. Find the probability that score is less than - 1.73 and draw a sketch of the region. Sketch the region. Choose the correct graph below. v Q Q Q Q Q Q Q Q [3' [3' [3' [3' 1.73 -1.73 -1 .73 -1.73 1.73 The probability is (Round to four decimal places as needed.) Assume that a randomly selected subject is given a bone density test. Those test scores are normally distributed with a mean of 0 and a standard deviation of 1. Draw a graph and nd the probability of a bone density test score greater than - 1.86. Sketch the region. Choose the correct graph below. Q q Q Q Q Q Q Q [3 [3 [3 [3 1.86 -1.86 -1.86 -1.86 1.86 The probability is . (Round to four decimal places as needed.) Assume that a randomly selected subject is given a bone density test. Bone density test scores are normally distributed with a mean of 0 and a standard deviation of 1. Draw a graph and nd P20, the 20th percentile. This is the bone density score separating the bottom 20% from the top 80%. Which graph represents P20? Choose the correct graph below. Q Q Q Q Q Q Q Q [1" [1" [1" [1" X X X X P20 P20 P20 P20 The bone density score corresponding to P20 is (Round to two decimal places as needed.) Find the area of the shaded region. The graph to the right depicts IQ scores of adults, and those scores are normally distributed with a mean of 100 and a standard deviation of 15. Click to view page 1 of the table. Click to View page 2 of the table. 75 105 The area of the shaded region is . (Round to four decimal places as needed.)