The probability of John going to the movies today is 0.7. The probability of Sam going to the movies today is 0.4. The probability that either only John will go or only Sam will go or that both of them will go is 0.8. What is the probability that both of them will go?

Based on a study from the Chronicles of Flippin'' Awesomeness, the probability that Napoleon and Pedro make it to their first period class on time is 0.38. The probability that they make it to their first period class on time, given that they catch the bus is 0.60. The probability that Napoleon and Pedro catch the bus and make it to their first period class on time is 0.22. What is the probability that Napoleon and Pedro catch the bus?

Andrea did a survey in her statistics class and found that 18 students out of 25 use the library at least twice a week.    What is the probability that a student chosen at random from the class uses the library at least twice a week? What is the probability that a student chosen at random from the class uses the library less often than twice a week? If two students are chosen at random from the class, what is the probability that both of them use the library at least twice a week? If two students are chosen at random from the class, what is the probability that both of them do NOT use the library at least twice a week?

A candy company claims that 31% of candies are orange. We randomly sample 100 candies. We wish to know the probability our sample is 29% orange candies or less. Find the probability our sample is 29% orange candies