Question

select the correct answer from the drop - down menu. the scatter plot shows the population of napa county from 1970 through 2010. there is association between the population of napa county and the year.

Explanation:

Step1: Observe the scatter - plot

As the year increases from 1970 to 2010 on the x - axis, the population (in thousands) on the y - axis also increases.

Step2: Determine the type of association

Since both variables (year and population) are increasing together, it is a positive association.

Answer:

a positive