A variable is normally distributed with mean 13 and standard deviation 2. a. Find the percentage of all possible values of the variable that lie between 11 and 16. b. Find the percentage of all possible values of the variable that exceed 10. c. Find the percentage of all possible values of the variable that are less than 8. Click here to view page 1 of the standard normal table. Click here to view page 2 of the standard normal table. a. The percentage of all possible values of the variable that lie between 11 and 16 is %. (Round to two decimal places as needed.) b. The percentage of all possible values of the variable that exceed 10 is %. (Round to two decimal places as needed.) c. The percentage of all possible values of the variable that are less than 8 is %. (Round to two decimal places as needed.)