A randomly selected sample of 100 horse owners found that 72 of them feed one flake of alfalfa plus one flake of grass hay in the evening to their horses, while the rest feed one flake of alfalfa plus oat hay in the evening. The estimated probability that horse owners feed alfalfa plus oat hay in the evening is:
A)0.72.
B)0.5.
C)0.28.
D)0.75.

Question

Quizplus · Accepted Answer

Out of the 100 horse owners surveyed, 72 of them feed alfalfa plus grass hay in the evening. That leaves 100 - 72 = 28 owners who feed alfalfa plus oat hay.

To find the estimated probability of an owner feeding alfalfa plus oat hay, we divide the number of owners who feed that combination by the total number of owners:

28/100 = 0.28

So the answer is (C) 0.28.

A Randomly Selected Sample of 100 Horse Owners Found That