Q: The spreadsheet below shows average outside temperature and retail food sales by a street vendor. What’s the relationship between temperature and sales?
or
Q: The average outside temperature and street vendor retail food sales are displayed in the spreadsheet below. What connection exists between sales and temperature?
- The correlation is weak
- The correlation is strong
- Relationship cannot be determined with this data
- The correlation is moderate
Explanation: To determine the relationship between temperature and sales, we would need to calculate the correlation coefficient between the two variables. The correlation coefficient (typically represented as “r”) tells us the strength and direction of a linear relationship between two variables.