Question

carries class paid attention to how many bottles each student collected for their recycling project.
bottles collected
bar graph with x-axis: names (carrie, larry, susan, paula, owen, gary, warren, bridgette); y-axis: number of bottles (0–100)
what is the range of the numbers?

Explanation:

Step1: Find the maximum value

From the bar graph, Larry collected 90 bottles, which is the maximum.

Step2: Find the minimum value

From the bar graph, Paula and Bridgette (or others with the lowest) collected 5 bottles? Wait, looking at the graph, Paula's bar is at 5? Wait, no, the y-axis: Carrie has 20, Larry 90, Susan 70, Paula 5, Owen 20, Gary 80, Warren 5, Bridgette 5? Wait, maybe I misread. Wait, the y-axis: 0,10,20,30,40,50,60,70,80,90,100. So Carrie: 20, Larry:90, Susan:70, Paula:5, Owen:20, Gary:80, Warren:5, Bridgette:5. So maximum is 90, minimum is 5.

Step3: Calculate the range

Range = Maximum - Minimum = 90 - 5 = 85. Wait, no, maybe Paula is 5? Wait, let's check again. Wait, the bars: Carrie (red) is at 20, Larry (green) at 90, Susan (cyan) at 70, Paula (yellow) at 5, Owen (blue) at 20, Gary (dark blue) at 80, Warren (purple) at 5, Bridgette (light green) at 5. So max is 90, min is 5. So range is 90 - 5 = 85? Wait, but maybe I made a mistake. Wait, maybe Paula is 10? No, the y-axis: 0,10,20... So Paula's bar is at 5 (between 0 and 10). So yes, min is 5, max is 90. So range is 90 - 5 = 85. Wait, but let's confirm: range is highest - lowest. So highest is 90 (Larry), lowest is 5 (Paula, Warren, Bridgette). So 90 - 5 = 85.

Wait, maybe I misread the minimum. Let's check each:

Carrie: 20

Larry:90

Susan:70

Paula:5 (yellow bar, below 10)

Owen:20 (blue bar, at 20)

Gary:80 (dark blue, at 80)

Warren:5 (purple, at 5)

Bridgette:5 (light green, at 5)

So minimum is 5, maximum is 90. So range is 90 - 5 = 85.

Answer:

85