MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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b. Which is easier to sketch relatively accurately, a pie chart or a bar chart?
O A. A bar chart is easier because the bars are always in decreasing order of category percentages, which makes comparisons of categories easier.
OB. A pie chart is easier because a pie chart has one shape (a circle), which is easier to graph more accurately than a bar graph, which has multiple shapes (multiple rectangles).
OC. A pie chart is easier because estimating the sizes of the slices in a pie chart is easier than estimating the heights of the bars in a bar graph.
O D. A bar chart is easier because sketching the exact percentages is more challenging in a pie chart.
c. What is the advantage of using a graph to summarize the results instead of merely stating the percentages for each source?
OA. A graph allows the viewer to easily see the center of the distribution.
B. A graph allows the viewer to associate a shape with each category.
O C. A graph allows the viewer to more easily judge the relative sizes of the percentages in each category.
O D. A graph gives the viewer a better sense of the data because it associates a number with each category.
d. Which is the modal category?
The modal category is
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Transcribed Image Text:b. Which is easier to sketch relatively accurately, a pie chart or a bar chart? O A. A bar chart is easier because the bars are always in decreasing order of category percentages, which makes comparisons of categories easier. OB. A pie chart is easier because a pie chart has one shape (a circle), which is easier to graph more accurately than a bar graph, which has multiple shapes (multiple rectangles). OC. A pie chart is easier because estimating the sizes of the slices in a pie chart is easier than estimating the heights of the bars in a bar graph. O D. A bar chart is easier because sketching the exact percentages is more challenging in a pie chart. c. What is the advantage of using a graph to summarize the results instead of merely stating the percentages for each source? OA. A graph allows the viewer to easily see the center of the distribution. B. A graph allows the viewer to associate a shape with each category. O C. A graph allows the viewer to more easily judge the relative sizes of the percentages in each category. O D. A graph gives the viewer a better sense of the data because it associates a number with each category. d. Which is the modal category? The modal category is
In 2012 in the United States, most electricity was generated from coal (37%), natural gas (30%), or nuclear power plants (19%). Hydropower accounted for 7% of the total electricity produced; other renewable sources such as wind or solar power accounted
for 5%. Other nonrenewable sources (such as petroleum) made up the remaining 2%. Complete parts a through d below.
a. Display the information in a bar graph. The bars, from left to right, represent coal, natural gas, nuclear power, hydropower, wind or solar, and other nonrenewable sources. Choose the correct graph below.
O B.
O A.
Q
40-
40-
30-
30-
Q
20-
20-
10-
10-
G
0-
Electricity Source
Electricity Source
Q
40
40-
Q
Q
30-
30-
20-
20-
10-
10-
0-
0-
Electricity Source
Electricity Source
b. Which is easier to sketch relatively accurately, a pie chart or a bar chart?
O A. A bar chart is easier because the bars are always in decreasing order of category percentages, which makes comparisons of categories easier.
OB. A pie chart is easier because a pie chart has one shape (a circle), which is easier to graph more accurately than a bar graph, which has multiple shapes (multiple rectangles).
OC. A pie chart is easier because estimating the sizes of the slices in a pie chart is easier than estimating the heights of the bars in a bar graph.
O D. A bar chart is easier because sketching the exact percentages is more challenging in a pie chart.
c. What is the advantage of using a graph to summarize the results instead of merely stating the percentages for each source?
O C.
Percent
Percent
O D.
Percent
Percent
0-
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Transcribed Image Text:In 2012 in the United States, most electricity was generated from coal (37%), natural gas (30%), or nuclear power plants (19%). Hydropower accounted for 7% of the total electricity produced; other renewable sources such as wind or solar power accounted for 5%. Other nonrenewable sources (such as petroleum) made up the remaining 2%. Complete parts a through d below. a. Display the information in a bar graph. The bars, from left to right, represent coal, natural gas, nuclear power, hydropower, wind or solar, and other nonrenewable sources. Choose the correct graph below. O B. O A. Q 40- 40- 30- 30- Q 20- 20- 10- 10- G 0- Electricity Source Electricity Source Q 40 40- Q Q 30- 30- 20- 20- 10- 10- 0- 0- Electricity Source Electricity Source b. Which is easier to sketch relatively accurately, a pie chart or a bar chart? O A. A bar chart is easier because the bars are always in decreasing order of category percentages, which makes comparisons of categories easier. OB. A pie chart is easier because a pie chart has one shape (a circle), which is easier to graph more accurately than a bar graph, which has multiple shapes (multiple rectangles). OC. A pie chart is easier because estimating the sizes of the slices in a pie chart is easier than estimating the heights of the bars in a bar graph. O D. A bar chart is easier because sketching the exact percentages is more challenging in a pie chart. c. What is the advantage of using a graph to summarize the results instead of merely stating the percentages for each source? O C. Percent Percent O D. Percent Percent 0-
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