The Daily Demand $x$ For a Certain Product (In Hundreds of Pounds) Is a of Pounds)

question 43

Multiple Choice

The daily demand $x$ for a certain product (in hundreds of pounds) is a random variable with the probability density function $f ( x ) = \frac { 2 } { 9 } x ( 3 - x )$ over the interval $[ 0,3 ]$ . Find the probability that $x$ is within one standard deviation of the mean. Express your answer as a percent.

• A)96.44 \(\%\)
• B)49.28 \(\%\)
• C)62.61 \(\%\)
• D)13.41 \(\%\)
• E)72.77 \(\%\)

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Definitions:

Schedule SE

The tax form used by self-employed individuals to calculate the taxes owed on net earnings from self-employment.

Deductible Expenses

Expenses that can be subtracted from gross income to reduce taxable income, including certain business, charitable, educational, and medical expenses.

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An activity done regularly in one's leisure time for pleasure, which might generate income that is treated differently for tax purposes than income earned from a business.

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