The Australian sheep dog is a breed renowned for its intelligence and work ethic. It is estimated that 45% of adult Australian sheep dogs weigh 65 pounds or more. A sample
Of 19 adult dogs is studied. What is the mean number of dogs who weigh 65 lb or more?
A) 19
B) 4.7025
C) 8.55
D) 2.1685

Question

Quizplus · Accepted Answer

The mean number of dogs who weigh 65 lb or more in a sample of 19 dogs is calculated by multiplying the probability (0.45) by the sample size (19), which equals 8.55.

The Australian Sheep Dog Is a Breed Renowned for Its