Mathematics · Correlation & Coefficient of Determination

Using data from twelve European countries, the correlation between car ownership levels and road deaths is found to be 0.73. Which two of the following statements follow from this result? 1. High levels of car ownership cause high levels of road deaths. 2. There is a strong linear relationship between car ownership and road deaths. 3. Approximately 53% of the variation in road deaths can be explained by the variation in car ownership. 4. Approximately 73% of the variation in road deaths can be explained by the variation in car ownership.