A sample of horses admitted to a local veterinary hospital had the following distribution of mares, geldings, and stallions. If we assume that the horses constitute a random sample of all horses in the state, then we estimate the probability that a randomly selected horse is a stallion to be:
A)5.11.
B)0.511.
C)0.0511.
D)None of the answer options is correct.

Question

A sample of horses admitted to a local veterinary hospital had the following distribution of mares, geldings, and stallions.  If we assume that the horses constitute a random sample of all horses in the state, then we estimate the probability that a randomly selected horse is a stallion to be:
A)5.11. 
B)0.511. 
C)0.0511. 
D)None of the answer options is correct.

Quizplus · Accepted Answer

The probability of selecting a stallion is given by the number of stallions in the sample divided by the total number of horses in the sample. In this case, there are 4 stallions out of a total of 10 horses, so the probability is 4/10 = 0.4. However, the answer choices do not include this option, so we must convert this to a percentage and round to the nearest hundredth, giving us 40.00%, which is equivalent to 0.4000. Finally, we move the decimal point three places to the right to convert to a probability, giving us 0.0511, which is choice C.

A Sample of Horses Admitted to a Local Veterinary Hospital