Invasive melanoma of the skin is a type of malignant skin cancer; melanoma accounts

for 1% of all skin cancers diagnosed in the United States, but causes the most deaths

out of all types of skin cancer. In the United States, the overall incidence rate of melanoma

is 21.8 cases per 100,000 people per year. The highest incidence rate occurs among non-

Hispanic white males: in this subgroup, melanoma occurs with rate 34.9 per 100,000 people

annually.

iv. Suppose that in a given year, a total of 60 cases of melanoma were observed in Washington,

D.C., and all cases occurred among non-Hispanic white males. Does the probability

of this event equal the probability computed in part ii.? Explain your answer.