A variable is normally distributed with mean 15 and standard deviation 4. a. Find the percentage of all possible values of the variable that lie between 9 and 18. b. Find the percentage of all possible values of the variable that exceed 11. c. Find the percentage of all possible values of the variable that are less than 14. 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 9 and 18 is%. (Round to two decimal places as needed.)

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A variable is normally distributed with mean 15 and standard deviation 4.
a. Find the percentage of all possible values of the variable that lie between 9 and 18.
b. Find the percentage of all possible values of the variable that exceed 11.
c. Find the percentage of all possible values of the variable that are less than 14.
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 9 and 18 is %.
(Round to two decimal places as needed.)
Transcribed Image Text:A variable is normally distributed with mean 15 and standard deviation 4. a. Find the percentage of all possible values of the variable that lie between 9 and 18. b. Find the percentage of all possible values of the variable that exceed 11. c. Find the percentage of all possible values of the variable that are less than 14. 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 9 and 18 is %. (Round to two decimal places as needed.)
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