(Solved): A variable is normally distributed with mean 9 and standard deviation 2 . a. Find the percentag ...

A variable is normally distributed with mean 9 and standard deviation 2 . a. Find the percentage of all possible values of the variable that lie between 4 and 11. b. Find the percentage of all possible values of the variable that are at least 7 . c. Find the percentage of all possible values of the variable that are at most 6 . Click here to view page 1 of the table of areas under the standard normal curve. Click here to view page 2 of the table of areas under the standard normal curve. a. The percentage of all possible values of the variable that lie between 4 and 11 is (Round to two decimal places as needed.)