A Normal Population Has a Mean $\mu = 10$ And Standard Deviation

question 45

Multiple Choice

A normal population has a mean $\mu = 10$ and standard deviation $\sigma = 2$ What is the 86 th percentile of the population?

• A) 10.94
• B) 9.73
• C) 13.38
• D) 12.16

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Definitions:

Dependent Variables

Variables in an experiment that are expected to change as a result of changes made to the independent variables.

Frequency Polygon

A graphical representation of the distribution of numerical data. It is a line graph of class frequencies plotted against mid-point values.

Normal Distribution

A bell-shaped distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence.

Outliers

Data points that significantly differ from other observations in a dataset, potentially indicating a measurement error or a different underlying process.