Quiz on Correlation

Which of the following best describes a positive correlation?

• The more students sleep, the less they remember.

• The more students review, the higher their test scores.

• The more students talk, the fewer notes they take.

• The more students eat, the more distracted they are.

A teacher observes that students who participate more in class tend to have better grades. This is an example of:

• Negative correlation

• No correlation

• Causal relationship

• Positive correlation

If students who come to school late tend to have lower performance, what type of correlation is shown?

• No correlation

• Negative correlation

• Positive correlation

• Random correlation

Which statement is TRUE about correlation?

• It proves one thing causes another.

• It describes the strength and direction of a relationship.

• It only applies to Math and Science.

• It can only be measured with observation.

A correlation coefficient of 0.85 indicates:

• A weak negative correlation

• A strong negative correlation

• A strong positive correlation

• No correlation

A correlation coefficient of -0.70 suggests:

• A strong positive relationship

• A weak negative relationship

• A strong negative relationship

• No relationship

What is the implication of a high positive correlation between homework completion and academic achievement?

• Homework is not effective.

• Students should avoid homework.

• More homework might be helpful.

• Homework causes students to fail.

Which tool is typically used to visualize correlation?

• Pie chart

• Scatter plot

• Bar graph

• Line graph

In interpreting correlation, what is meant by a "zero correlation"?

• There's no variability in data.

• There's a strong connection.

• There is no relationship between the variables.

• One variable causes the other.

Which correlation is most likely between time spent watching TV and time spent studying?

• Positive

• Negative

• Zero

• Perfect positive