Which of the following are examples of inferential statistics?
Check all that apply.
A. Finding the average (mean) of a set of numbers
B. Testing every lightbulb produced by a company to confirm that each one works
C. Testing random samples of lightbulbs produced by a company to confirm they work
D. Predicting whom you will someday marry
E. Testing a new drug on a random sample of patients to see how effective it is at curing the flu
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So with inferential statistics, you get descriptive statistics from a sample of a population and then you use those statistics about the sample to make inferences about the whole population.
For example, testing every light bulb the company makes is NOT an example of inferential statistics because they test all the light bulbs, not a sample of light bulbs.
Two of the options are examples about inferential statistics.