A study is being conducted on air quality at a small college in the South.As part of this study,monitors were posted at every entrance to this college from 6:00 a.m.to 10:00 p.m.on a randomly chosen day.The monitors recorded the mode of transportation used by each person as they entered the campus.Based on the information recorded,the following bar graph was constructed. If 1200 people entered campus on this particular day, (approximately)how many people arrived by bus?
A)10
B)100
C)120
D)135

Question

A study is being conducted on air quality at a small college in the South.As part of this study,monitors were posted at every entrance to this college from 6:00 a.m.to 10:00 p.m.on a randomly chosen day.The monitors recorded the mode of transportation used by each person as they entered the campus.Based on the information recorded,the following bar graph was constructed.  If 1200 people entered campus on this particular day, (approximately)how many people arrived by bus?
A)10 
B)100 
C)120 
D)135

Quizplus · Accepted Answer

The bar graph shows that the mode of transportation used by the most people was walking, followed by cars, and then buses. Looking at the bar for buses, we can estimate that it represents approximately 10% of the total number of people (since it is a little more than half of the bar representing 20%). Therefore, 10% of 1200 is 120, so approximately 120 people arrived by bus.

A Study Is Being Conducted on Air Quality at a Small