Question

Nico measured the water level in his pool every other day for two weeks. Which statement best describes the information shown by the scatterplot and trend line?

1) As the number of days increased, the water level always decreased.
2) As the number of days increased, the water level always increased.
3) As the number of days increased, the water level usually decreased.
4) As the number of days increased, the water level usually increased.

Answer 1

The scatterplot and trend line suggest that as the number of days increased, the water level usually decreased.

Step-by-step explanation:

The best statement that describes the information shown by the scatterplot and trend line is: 3) As the number of days increased, the water level usually decreased.

When a scatterplot shows a trend line that slopes downward and to the right, it indicates a negative correlation between the variables. In this case, as the number of days increased, the water level tended to decrease. However, it is important to note that the word 'usually' suggests that there may be some exceptions or fluctuations in the trend.