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 isÿ128ÿand the standard deviation isÿ14,a.ÿbetween what two numbers would approximately 68% of the values fall?betweenÿÿandÿb.ÿBetween what two numbers would 95% of the values fall?betweenÿÿandÿc.ÿBetween what two values would 99.7% of the values fall?betweenÿÿand