a. Using an appropriate and reliable web site with one year's data from within the last 5 years, research and make a table to the right of the problem, like the one shown in the example above, that shows the number of cases, the total population for that year, and the relative frequency (probability). Your table will estimate the probability that a randomly selected person in the U.S. will be afflicted with pertussis (whooping cough).

b. To assist health care providers in the U.S. in medically and financially preparing for whooping cough cases, use your estimated probability to predict the number of cases in the U.S. in 2022. To do this, extend your table to the right of this problem, and use the probability calculated in part 1 and the fact that the U.S. population in 2022 is estimated to be 335,250,000 people, to predict the number of U.S. whooping cough cases in 2022. Show all work in your table at the right.

c. In the answer box below do these things: 1. Give the emperical probability in a complete sentence. 2. Give the relevant URL(s) you visited to find the information/data. 3. Summarize in a sentence the result of your calculation from part 2 above.

Class in 2019. US Pop in 2019 Probability

18,617 328,239,523 0.00005672

Population in 2022 Probability Predicted 2020 Cases

335,250,000 0.00005672 19015

My question is what function do I use to answer c #1?