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11 Jun 2024, 04:27
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Dropdown 1: is a decrease of about 60%
Dropdown 2: 16
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
55%
(hard)
Question Stats:
65% (02:55) correct
35%
(03:01)
wrong
based on 3920
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The traffic that passes through a certain location is composed exclusively of the following nonoverlapping types of vehicles: “rural cars,” “urban cars,” “business day trucks,” and “through trucks.” For each of these vehicle types, and for each hour of the day, the graph depicts the typical percentage of the total number of the given type of vehicle passing through the location during that hour. For example, the graph indicates that slightly less than 8 percent of all urban cars that pass through the location on a typical day do so during hour 9.
On the basis of the given information, select from each of the drop-down menus the option that makes the statement most accurate.
From hour 17 to hour 22, the percent change in number of business day trucks passing through the location .
Assuming that total traffic over the day is the same for each of the four vehicle types, the hour of maximum total traffic is .
The traffic that passes through a certain location is composed exclusively of the following nonoverlapping types of vehicles: “rural cars,” “urban cars,” “business day trucks,” and “through trucks.” For each of these vehicle types, and for each hour of the day, the graph depicts the typical percentage of the total number of the given type of vehicle passing through the location during that hour. For example, the graph indicates that slightly less than 8 percent of all urban cars that pass through the location on a typical day do so during hour 9.
On the basis of the given information, select from each of the drop-down menus the option that makes the statement most accurate.
From hour 17 to hour 22, the percent change in number of business day trucks passing through the location .
Assuming that total traffic over the day is the same for each of the four vehicle types, the hour of maximum total traffic is .
ID: 100352
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Dropdown 1: is a decrease of about 60%
Dropdown 2: 16
11 Jun 2024, 05:40
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guddo
What we should know: The sum of all the points on each of the line should add up to 100. For example, tak ethe case of through trucks, the dotted orange lines. All 24 points are close to 4%, so they will add up to something greater than 24*4 or 96%.
1. From hour 17 to hour 22, the percent change in number of business day trucks passing through the location
Since the % on each line has the same base, the number of business day trucks, say b in total, will result in
At hour 17: 5%, so \(\frac{5}{100}*b = 0.05*b\)
At hour 22: 2.1%, so \(\frac{2.1}{100}*b = 0.021*b\)
Change = (0.05 - 0.021)b ~ 0.03b
% change = \(\frac{0.03b}{0.05b}*100=\frac{3}{5}*100\) = 60
2. Assuming that total traffic over the day is the same for each of the four vehicle types, the hour of maximum total traffic is
So, 100% of each is equal, meaning each of the % refers to same total quantity.
We should just check for the options given.
Hour 9: (4+5+6.8+7.8)% = 23.6%
Hour 15: (3.9+6.4+6.8+7.2)% = 24.3%
Hour 16: (4+6+7.3+8.1)% = 25.4%
16 Dec 2024, 04:53
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A) the percent change in the number of business-day trucks passing through the location from hour 17 to hour 22
Day 17 = 5%, Day 22 = approx 2.1%
%Change (from 17 to 22)= [(2.1-5)/5]*100 = 60%
B. Assuming that total traffic over the day is the same for each of the four vehicle types, the hour of maximum total traffic is?
We have options 9, 15, and 16. We can either add all the hours from the graphs for these options or compare the difference in the percentage change for these different hours. Both ways will give us 16 hr as answer.
Day 17 = 5%, Day 22 = approx 2.1%
%Change (from 17 to 22)= [(2.1-5)/5]*100 = 60%
B. Assuming that total traffic over the day is the same for each of the four vehicle types, the hour of maximum total traffic is?
We have options 9, 15, and 16. We can either add all the hours from the graphs for these options or compare the difference in the percentage change for these different hours. Both ways will give us 16 hr as answer.
