The Australian Sheep Dog Is a Breed Renowned for Its

question 15

Multiple Choice

The Australian sheep dog is a breed renowned for its intelligence and work ethic. It is estimated that 40% of adult Australian sheep dogs weigh 65 pounds or more. A sample
Of 14 adult dogs is studied. What is the standard deviation of the number of dogs who
Weigh 65 lb or more?

• A) 14
• B) 1.833
• C) 3.36
• D) 5.6

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Definitions:

Independent Variables

Variables in research that are controlled or changed to test their effects on dependent variables.

Combinations

The selection of items from a larger set where the order of selection does not matter.

Interaction Effect

In statistics, the effect on an outcome that varies depending on the levels of another variable, indicating that the effect of one variable depends on another.

Independent Variable

The variable in an experiment or study that is manipulated or classified by the researcher to observe its effect on the dependent variable.