In a college math class of 50 students, 23 are boys and 27 are girls. on the final exam, 15 boys and 14 girls made an a. what is the probability of choosing a boy or an a student if a student is chosen at random from the class?

Using pert, adam munson was able to determine that the expected project completion time for the construction of a pleasure yacht is 21 months, and the project variance is 4. a) what is the probability that the project will be completed in 17 months? b) what is the probability that the project will be completed in 20 months? c) what is the probability that the project will be completed in 23 months? d) what is the probability that the project will be completed in 25 months? e) what is the due date that yields a 95% chance of completion?