On the Average, 1

question 87

Multiple Choice

On the average, 1.8 customers per minute arrive at any one of the checkout counters of a grocery store. What type of probability distribution can be used to find out the probability that there will
Be no customer arriving at a checkout counter?

• A) binomial distribution.
• B) Poisson distribution.
• C) hypergeometric distribution.
• D) none of the above.

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Definitions:

Placebo Effect

A phenomenon where individuals experience a perceived or actual improvement in their condition despite receiving a treatment that has no therapeutic effect.

Control Groups

In experimental research, a group of subjects not exposed to the treatment or intervention being tested, serving as a baseline comparison for the experimental group.

Independent Variable

In an experiment, the variable that is manipulated or changed by the researcher to observe its effects on the dependent variable.

Exercise

Physical activities intended to improve health, physical fitness, and overall well-being.