15 !
a randomly selected sample of 100 horse owners found that 72 of them feed two flakes of grass hay in the morning and one flake of alfalfa plus one flake of grass hay in the evening to their horses while the rest feed two flakes of grass hay in the morning and one flake of alfalfa plus oat hay in the evening. the estimated probability that horse owners feed grass hay in the a. m. and alfalfa plus oat hay in the p. m. is:
a. 0.72.
b. 0.50.
c. 0.28.
d. 0.75.

Me because some of question i don’t understand

Which of the following would be a good name for the function that takes the weight of a box and returns the energy needed to lift it?

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?