A study 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 mode for the variable. Choose the correct answer below. This histogram is not bell-shaped, so a normal distribution could be used as a model for the variable. This histogram is not bell-shaped, so a normal distribution could not be used as a model for the variable. This histogram is bell-shaped, so a normal distribution could be used as a model for the variable. This histogram is bell-shaped, so a normal distribution could not be used as a model for the variable.