Astudy was conducted that resulted in the following relative frequency histogram. determine whether or not the histogram indicates that a normal distribution could be used as a model for the variable. 0 0.2 0.4 1000 2000 3000 4000 5000 a histogram with a horizontal axis from 1000 to 5000 in intervals of 1000 and a vertical axis from 0 to 0.4 in intervals of 0.1 contains 8 vertical bars of width 500. the heights of the vertical bars are as follows: 1000 to 1500, 0.35; 1500 to 2000, 0.3; 2000 to 2500, 0.15; 2500 to 3000, 0.1; 3000 to 3500, 0.04; 3500 to 4000, 0.03; 4000 to 4500, 0.01; 4500 to 5000, 0.02. choose the correct answer below. a. the histogram is not bell-shaped, so a normal distribution could be used as a model for the variable. b. the histogram is not bell dash shaped comma so a normal distribution could not be used as athe histogram is not bell-shaped, so a normal distribution could not be used as a model for the variable. model for the variable. c. the histogram is bell-shaped, so a normal distribution could not be used as a model for the variable. d.