Question

kendall tracked the amount of water her windowsill plant needed each week over ten weeks. her data is shown below.
which of the following is true?
a. there is a positive association between the number of weeks and the amount of water the plant needed.
b. there is no association between the number of weeks and the amount of water the plant needed.
c. there is a negative association between the number of weeks and the amount of water the plant needed.
d. there is both a positive and negative association between the number of weeks and the amount of water the plant needed.

Explanation:

A positive association means as the x-value (weeks) increases, the y-value (water needed) generally increases. Observing the scatter plot, as the number of weeks goes from 1 to 10, the amount of water needed tends to rise overall, with most points moving upward as x increases.

Answer:

A. There is a positive association between the number of weeks and the amount of water the plant needed.