About What Percent of the Cockroaches Have Weights Between 76

question 54

Multiple Choice

About what percent of the cockroaches have weights between 76 grams and 84 grams?
The weights of cockroaches follow a Normal distribution with mean 80 grams and standard deviation 2 grams. The figure below is the Normal curve for this distribution of weights.

• A) 99.7 percent
• B) 95 percent
• C) 68 percent
• D) 47.5 percent
• E) 34 percent

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Broad

Wide in extent or scope; encompassing a large area or range.

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Thorough and complete in coverage or scope, addressing all necessary aspects of a topic or issue.

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Pertaining to an extended period, typically beyond five years, used especially in planning and forecasting future goals and strategies.

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The process of managing and directing activities in an organization to ensure that its goals are achieved efficiently and effectively.