Question

Using the Regression Calculator
John sells frozen fruit bars at a stand in a park during the summer months. He records the average weekly temperature and number of frozen fruit bars sold for 6 weeks.

A 2-column table with 6 rows. The first column is labeled temperature (degrees Fahrenheit) with entries 67, 71, 76, 76, 82, 87. The second column is labeled fruit bars sold with entries 50, 54, 63, 65, 65, 100.
What type of correlation exists between the temperature and the number of fruit bars sold?



What is the real-world meaning of the slope of the line of best fit for the given scenario?

There are approximately
more fruit bars sold for every
degree(s) the temperature rises.

Answer 1

There is a positive correlation — as temperature increases, fruit-bar sales tend to increase.

Slope ≈ 2.19.
Real-world meaning: about 2.19 more fruit bars are sold for every 1 degree Fahrenheit the temperature rises (≈ 2 more bars per degree).