If the Random Variable X Is Normally Distributed with a Mean

question 56

Short Answer

If the random variable X is normally distributed with a mean of 75 and a standard deviation of 8, then P(X ≤ 75) is: $\begin{array}{|l|l|}\hline \text { A. } & 0.125 . \\\hline \text { B. } & 0.975 . \\\hline \text { C. } & 0.625 \\\hline \text { D. } & 0.500 \\\hline\end{array}$

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Definitions:

Variable Costing

An accounting method that includes only variable manufacturing costs—direct materials, direct labor, and variable manufacturing overhead—in the cost of goods sold.

Absorption Costing

A system of accounting that encompasses the full range of manufacturing costs—direct materials, direct labor, and overheads both variable and fixed, within the cost framework of a product.

Break-even Sales

The amount of revenue required to cover total fixed and variable costs, resulting in a net profit of zero.

Eastern Division

A geographical or operational segment of a larger organization designated to cover the eastern part of a country or area.