A display case of lottery tickets contains 5 winning tickets and 45 tickets that will not win. Seven tickets are chosen at random. a) What is the probability of those 7 tickets containing 4 winners? b) What is the probability that less than 3 tickets are winners? ( Text sharing Text c) What is the probability that more than 2 tickets are winners? Text (Hint: use

18. A jar contains 10 red marbles and 12 green marbles. You reach in the jar and pull out two marbles at random. What is the probability that both of the marbles chosen are green? Edit View Insert Format Tools Table

A college surveys the 1258 alumni from 2019 and 2020. Of the 679 alumni from 2019, 127 went on to graduate school. Of the 579 alumni from 2020, 196 went on to graduate school. Find the probability that an alumnus selected at random from 2019 and 2020 is as described. a) a 2019 alumnus? b) a 2020 alumnus? c) a 2019 alumnus who did not attend graduate school?

The mathematics faculty at a college consists of 7 ​professors,11associate​ professors, 4 assistant​ professors, and 12 instructors. If one faculty member is randomly​ selected, find the probability of choosing a professor or an instructor. The probability is                   type an fraction or integer