In a class of 21 students, 16 are female and 15 have an A in the class. There are 2 students who are male and do not have an A in the class. What is the probability that
a student chosen randomly from the class does not have an A?

Three times the difference of federico’s age, and 4, increased by 7, is greater than 37. what are possible values of federico’s age?

If jaime wants to find 60% of 320, which table should he use?

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?