Algebra 1 | Unit 3 | Lesson 10: Fossils and Flags | Practice Problems

A random sampling of people are asked whether they like comedies or dramatic movies, and whether they prefer to watch them in the theater or at home. Create a relative frequency table that shows the percentage of comedy lovers that prefer each location and the percentage of drama lovers that prefer each location.

Two types of soil are used to grow corn to see if there is an association between the type of soil and the time it takes to reach harvest readiness. Due to the difficulty in making soil B, there were only 100 corn plants grown in that soil type. Complete the table so that it suggests no association between soil type and time to reach harvest readiness. Explain your reasoning.

• -0.45

• -1

• -0.8

• 1

• -0.97

• -1

• 0

• 0.7

• 1

Noah creates a scatter plot showing the relationship between the number of free throws made in a basketball game and the number of points scored. The correlation coefficient for the line of best fit is 0.76. Are they correlated? Explain your reasoning. Do either of the variables cause the other to change? Explain your reasoning.