If the Random Variable Z Has a Standard Normal Distribution

question 104

Multiple Choice

If the random variable Z has a standard normal distribution, then P(1.17 ≤ Z ≤ 2.26) is:

• A)0.1091.
• B)0.1203.
• C)0.2118.
• D)0.3944.

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Definitions:

Y-intercept

The point where a graph crosses the y-axis, represented by the coordinates (0,y).

Estimate

The determination of an approximation of a result which is not necessarily exact, but within acceptable bounds of accuracy.

X-intercept

The point at which a line crosses the x-axis on a graph, indicating where the value of the function is zero.

Y-intercept

The point where a graph intersects the y-axis, representing the value of the dependent variable when all independent variables are zero.