I am having difficult setting up the the question based on the information I have can you help

This deals in probability in biostatistics

Student owned a computer at the start of the MPH NO 46 89 86 42 26 program? YES 60 62 64 51 23 Total 106 151 150 93 Exercise 3: (2 points) Out of 500 MPH students, we select at random a student and note whether that student ever smoke pipe. Then we select again, at random, from the entire group (sampling with replacement) and not again whether the newly selected student ever smoked pipe. A table with the values is given below a) What is the probability of selecting a student who never smoked pipe? b) What is the probability that neither student smoked pipe? (Show your work) Ever smoked pipe? Number of students Percentage NO 408 81.6 YES 92 18.4 Total 500 100 Exercise 4: (2 points)