Answer
(a) The value from column B is .0832
(b) The value from column C is .2912
(c) The value from column B is .4778
Work Step by Step
(a) We use the table of Normal curve areas to find the proportion of the normal distribution between the mean and zeta= .21. First, go to column A to find the zeta score of .21. Then, use column B to find the proportion of the curve between the mean (mu) and a zeta score of .21
(b) We use the table of Normal curve areas to find the proportion of the normal distribution that is beyond zeta= .55. First, go to column A to find the zeta score of .55. Then, use column C to find the proportion of the curve greater that a zeta score of .55 (from zeta to infinity).
(c) We use the table of Normal curve areas to find the proportion of the normal distribution between the mean and zeta= - 2.01. First, go to column A to find the zeta score of 2.01. Then, use column B to find the proportion of the curve between the mean (mu) and the zeta score of 2.01.
