At the January 2018 Women’s March in Boston, researchers from Boston University surveyed a group of 1,000 march participants, asking them about their incomes, ages, and jobs. Figure 4.23 shows the income distribution of the participants.

a. What is the shape of the distribution in Figure 4.23?

b. Identify the mode, median, and mean from Figure 4.23. Explain how you were able to identify each.

c. Offer an explanation for why the income distribution of march participants looks how it does.