Question

the company wants to recommend to customers that they should replace the filter when the water quality score drops below 85. for best results, customers should replace the filter after filtering how many gallons of water?
squeeze filter water quality test 2
water quality score vs gallons of water processed (with a horizontal line at 85 on the water quality score axis and scattered points representing data)

Explanation:

Step1: Analyze the graph

We need to find the number of gallons when the water quality score drops below 85. Looking at the scatter plot, we observe the trend of the water quality score as gallons increase.

Step2: Identify the gallon value

From the graph, when the water quality score drops below 85, we check the x - axis (gallons of water processed). By observing the points, we can see that around 50 gallons, the water quality score starts to be consistently below 85 (or the trend shows that at 50 gallons, the score drops below 85).

Answer:

50