A distribution of numbers is approximately bell shaped. If the mean of the numbers is 128 and the standard deviation is 14, a. between what two

A distribution of numbers is approximately bell shaped. If the mean of the numbers is 128 and the standard deviation is 14,

a. between what two numbers would approximately 68% of the values fall?

between 

 and 

b. Between what two numbers would 95% of the values fall?

between 

 and 

c. Between what two values would 99.7% of the values fall?

between 

 and