this is the table for the problem I posted before

Problem 1. In a study of the relationship between health risk and income, a large group of people living. in MA were asked a series of questions. Some of the results are shown in the following table: Low Income Medium Income High Income Total Smoker 601 298 257 1156 Nonsmoker 2019 1601 1978 5598 Total 2620 1899 2235 6754 a. In this study, what is the probability that someone smokes? b. What is the probability that someone smokes, if they have a high income? c. What is the probability that someone smokes and they have a high income? d. What is the probability that someone smokes or they have a high income? e. Is smoking independent of income level? Why, or why not? 2. Suppose that a box is known to contain 50 red and 25 blue marbles. Two marbles are to be drawn in succession. The first marble is set aside and its color noted. It is not placed back into the box before the second marble is drawn. a. Sketch a probability three which represents this situation. b. What is the probability that the second marble is red, if the first marble is red? c. If the second marble is blue, what is the probability that the first marble is red