Kiran creates a scatter plot showing the relationship between the number of students attending drama club and the number of students attending poetry club each week. The correlation coefficient for the data is -0.36.

1. Describe the correlation as strong or weak and positive or negative. Explain your reasoning.
2. Do you think either of the variables causes the other to change? Explain your reasoning.

A news website shows a scatter plot with a negative relationship between the amount of sugar eaten and happiness levels. The headline reads, “Eating sugar causes happiness to decrease!”

1. What is wrong with this claim?
2. What is a better headline for this information?

A group of 125 college students are surveyed about their note-taking and study habits. Some results are represented in the table.

How many students prefer typing notes and study for less than 1 hour?

The number of miles driven, \(x\), and the number of gallons remaining in the gas tank, \(y\), have a strong, negative relationship.

Explain what it means to have a strong, negative relationship in this context.