5. We want to make a histogram on the density scale to visualize the yearly income distribution of a group of recent college graduates. The incomes are divided into four intervals. No one in the group had an income higher than $200,000. For each interval, calculate what the height of the corresponding rectangle should be on the density scale and add it to the table. (You do not need to draw the histogram.) Income values Number of graduates Height of rectangle dollars % er dollar 0 - 20,000 152 20,000 - 50,000 168 50,000 - 100,000 453 100,000 - 200,000 217