Pat Has 4 Hours to Spend Either Studying for a Test

question 8

Multiple Choice

Pat has 4 hours to spend either studying for a test or playing a new video game. If Pat spends all of that time studying, Pat can score a 92 on the test. If Pat plays for 1 hour, Pat's test score falls 5 points. For playing a second hour, Pat's score falls by another 7 points. Playing for a third hour will lower Pat's score by another 10 points. Refer to the information above. The opportunity cost of playing video games:

• A) decreases the longer Pat plays.
• B) increases the longer Pat plays.
• C) is greater than the value of earning a higher grade on the test.
• D) is equal to the value of earning a higher grade on the test.

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Definitions:

Sample Variances

The measure of how spread out the numbers in a sample dataset are, calculated by averaging the squared differences from the sample mean.

Normal Population

A group or set of entities that exhibit data distribution in a bell-shaped curve, also known as the Gaussian distribution, where the mean, median, and mode are equal.

Degrees of Freedom

The number of independent values or quantities that can be assigned to a statistical distribution or in the calculation of a statistic.

Sample Sizes

The number of observations or data points that make up a sample, an essential aspect of experimental design affecting the accuracy of statistical estimates.