Available Evidence Suggests That the Virus That Causes AIDS

question 23

Multiple Choice

Available evidence suggests that the virus that causes AIDS

• A) was introduced into the population of homosexual males in the 1980s.
• B) is a virus that "jumped" from an animal species into humans.
• C) was a genetic mutation that resulted from germ warfare experiments.
• D) is a single strain of virus.

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Definitions:

Sampling Distribution

Distribution of probabilities associated with a particular statistic, originating from a random sample.

Independent Samples

Samples that are collected from separate populations and are not related or paired in any way, ensuring that the observations are independent of each other.

Normal Populations

Normal populations are groups or sets of entities that have characteristics following a normal distribution, which is symmetric around its mean.

Student T-Distributed

Refers to a family of distributions that arise when estimating the mean of a normally distributed population in situations where the sample size is small and population standard deviation is unknown.