Find the Standard Deviation of the Random Variable A) $2.95$ B) $1.06$

question 70

Multiple Choice

Find the standard deviation of the random variable.
-The random variable X is the number of people who have a college degree in a randomly selected group of four adults from a particular town. Its probability distribution is given in the table. Round
The answer to two decimal places. $\begin{array}{c|ccccc}\mathrm{x} & 0 & 1 & 2 & 3 & 4 \\\hline \mathrm{P}(\mathrm{X}=\mathrm{x}) & 0.0081 & 0.0756 & 0.2646 & 0.4116 & 0.2401\end{array}$

• A)\(2.95\)
• B) \(1.06\)
• C) \(0.92\)
• D) \(0.84\)

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Definitions:

Comparative Advantage

The skill of an individual, enterprise, or nation in producing a commodity or performing a service with a lower sacrifice of alternative opportunities than competing entities.

Oranges

A citrus fruit that is often considered in economic examples related to trade, comparative advantage, and consumer choice.

Peaches

A type of fruit with a characteristic fuzzy skin and sweet flesh, commonly eaten fresh or used in cooking and baking.

Human Capital

The improvement in labor created by education and knowledge that is embodied in the workforce.