Researchers Have Found a Negative Correlation Between the Number of Hours

question 24

Multiple Choice

Researchers have found a negative correlation between the number of hours a high school student works and high school achievement. Given this knowledge, you would expect that.

• A)more hours worked per week are associated with greater high school achievement
• B)more hours worked per week are associated with lower high school achievement
• C)there is no relation between number of hours worked per week and high school achievement
• D)if you knew the number of hours worked per week it would not help you predict the student's high school achievement

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Definitions:

Hydrolysis

A chemical reaction in which water breaks down another compound, splitting it into two or more substances.

3-Heptanone

An organic compound that is a ketone with seven carbon atoms, where the carbonyl group is located at the third carbon.

Propanal

An aldehyde with the chemical formula C3H6O, characterized by a three-carbon chain with a terminal carbonyl group.

Chromic Acid

An oxidizing agent made by dissolving chromium trioxide in water or by dissolving dichromate salts in sulfuric acid, used primarily in cleaning laboratory glassware and in certain oxidation reactions.