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.

Question

Mathematics

Finn Buckley

30 January, 01:16

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.

+1

Answers (1)

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Isaac · Answer 1

We know that both groups feed grass hay in the morning, so that's 100/100.

First group feeds alfalfa and grass in the evening

Second group feeds alfalfa and oat hay in the evening.

The estimated probability that horse owners feed grass hay the morning (AM) is 100%.

The estimated probability that horse owners feed alfalfa + oat hay in the pm is 28/100 or 28% (C)