題組內容

We took two variables (number of cigarettes smoked per week and number of friends who smoke) to further examine their relationship, and came up with the equation to the trendline as the scatterplot below (y = 33.681x + 1.3326).

Based on the above information, please answer the following questions:

(6) The R square value is 0.7264, please explain what it means in plain language.