The binomial probability distribution tends to be bell-shaped when one or more of the following two conditions occur. What might account for the shape of the histogram. Make Sure To Include Socs When Describing Distributions Socs Exploringdata Printable Worksheets Teaching Common Core Math Lessons Middle School Describe the relationship between the mode the mean and the median of this distribution. . It is an area diagram and can be defined as a set of rectangles with bases along with the intervals between class boundaries and with areas proportional to frequencies in the corresponding classes. If there are more than two mounds we say the distribution is multimodal. A distribution that is not symmetric must have values that tend to be more spread out on one side than on the other. In this case we say that the distribution is skewed. View the full answer. The shape of the distribution is bell shaped or symmetric or we can s...