A Researcher Wants to Know the Probability of Selecting a Student

question 46

Multiple Choice

A researcher wants to know the probability of selecting a student athlete from a school population where 5% of students are athletes.If the researcher selects a sample of 120 students,is it appropriate to use the normal approximation of the binomial distribution to estimate this probability?

• A) Yes, because the sample size is large.
• B) Yes, because nq is greater than 10.
• C) No, because np is greater than 10.
• D) No, because np is less than 10.

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Definitions:

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Central ideas or concepts that are common across a wide range of subjects, serving to link different areas of study or thought.

Psychological

Pertains to the mind or mental processes and how these affect behavior and well-being.

Psychoactive Drugs

Substances that can alter perception, mood, consciousness, or behavior by affecting the central nervous system.

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The consumption of a toxic amount of a substance, which is sufficient to cause death.