For a Normal Population with a Mean of 10 and a Variance

question 25

Multiple Choice

For a normal population with a mean of 10 and a variance 4,the P(X $\ge$ 10) is ___.

• A)1.0
• B)0.5
• C)0.75
• D)0.25

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Definitions:

Pie Chart

A pie chart is a circular graph divided into slices to illustrate numerical proportion, where the arc length of each slice is proportional to the quantity it represents.

Homoscedasticity

A condition in which the variance within a dataset remains constant across different levels of an independent variable.

Error Variable

A variable in statistical models that captures the difference between observed and predicted values.

Variance

A measure of the spread of a set of numbers, indicating how much the individual numbers differ from the mean.