The Environmental Protection Agency has set the arsenic standard for drinking water at 0.010 parts per million (ppm). In a community, 12 wells were tested for arsenic. The results are shown in the line plot.
How many wells in the community exceeded the arsenic standard for drinking water?
Arsenic in Drinking Water
A line plot titled Arsenic in Drinking Water. The line graph is labeled Parts per Million (p p m) from 0 to 20 over 1,000. 2 x's are at StartFraction 0 Over 1,000 EndFraction. 3 x's are at StartFraction 5 Over 1,000 EndFraction. 2 x's are at StartFraction 10 Over 1,000 EndFraction. 1 x is at StartFraction 20 Over 1,000 EndFraction.
CLEAR SUBMIT
1 well
3 wells
5 wells
10 wells