The Weight Losses for Participants in a Large Exercise and Diet

question 23

Multiple Choice

The weight losses for participants in a large exercise and diet study vary according to a Normal distribution with mean 14.5 pounds and standard deviation 3 pounds.
Approximately one-half of the participants in the study lose more than:

• A) 2 pounds.
• B) 16.5 pounds.
• C) 12.5 pounds.
• D) 14.5 pounds.

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Definitions:

Binomial Distribution

A statistical distribution that represents the chances of a value adopting one of two distinct states across a certain amount of observations.

Hypergeometric Distribution

A probability distribution used for sampling without replacement, describing scenarios with two outcomes.

Events Of Interest

Specific outcomes or occurrences within a statistical experiment that are relevant to the research question or objective.

Randomly

In a manner that occurs without a predictable pattern, enabling each member of a set to have an equal chance of selection.