The Random Variable X Is Normally Distributed with Mean of 80

question 100

Multiple Choice

The random variable X is normally distributed with mean of 80 and variance of 36. The 67^th percentile of the distribution is:

• A)72.00.
• B)95.84.
• C)90.00.
• D)82.64.

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Definitions:

Fixed Costs

Expenses that do not change with the level of goods or services produced within a certain time span.

Operating Income

The profit realized from a business's core operations, excluding deductions of interest and taxes.

Flexible Budget

A budget that adjusts or flexes with changes in volume or activity levels, providing a more useful comparison to actual costs.

Variable Costs

Expenses that fluctuate directly with changes in production volume or activity level, such as raw materials and direct labor costs.