Find the Variance for the Given Data $$\begin{array} { l l l l l } 30.9 & 28.0 & 23.9 & 15.8 & 26.5 \\15.3 & 12.7 & 14.6 & 25.6 & 10.4\end{array}$$

question 8

Multiple Choice

Find the variance for the given data. Round your answer to one more decimal place than the original data.
-A class of sixth grade students kept accurate records on the amount of time they spent playing video games during a one-week period. The times (in hours) are listed below: $$\begin{array} { l l l l l } 30.9 & 28.0 & 23.9 & 15.8 & 26.5 \\15.3 & 12.7 & 14.6 & 25.6 & 10.4\end{array}$$

• A) \(215.45 \mathrm { hr } ^ { 2 }\)
• B) \(53.74 \mathrm { hr } ^ { 2 }\)
• C) \(53.84 \mathrm { hr } ^ { 2 }\)
• D) \(48.46 \mathrm { hr } ^ { 2 }\)

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Definitions:

Equilibrium Price

The cost point where the amount of a product or service sought by consumers matches the amount available from producers.

Willingness to Pay

The maximum amount a consumer is prepared to spend for a good or service.

Baseball Game Ticket

A document or electronic card that grants the bearer entry to a baseball game.

Consumer Surplus

The distinction between the full amount consumers are willing and able to spend on a good or service and the actual sum paid.