AnswersAlgebra 2Representing Data

Representing Data — Quiz Answers

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1
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Which graph is more likely to show a buyer that it is a good time to buy a car?

A
graph 2 because the y -axis scale makes it look like cars are selling at a lower price
B
graph 2 because the x -axis scale makes it look like cars are selling at a lower price
C
graph 1 because the y -axis scale makes it look like cars are selling at a lower price
D
graph 1 because the x -axis scale makes it look like cars are selling at a lower price
2
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The histograms show the ages of dogs at four different shelters. For which set of data is the mean most likely greater than the median?

A
Image with description A bar graph represents the ages of dogs at five different shelters. The horizontal axis lists 0-1 to 8-9 and is labeled as age. The vertical axis lists 0 to 4 and is labeled as the number of dogs. There are 5 bars on the graph. The first bar represents the 0-1 age group of dogs and shows shelter for 0 dogs, the second bar represents the 2-3 age group of dogs and shows shelter for 3 dogs, the third bar represents the 4-5 age group of dogs and shows shelter for 4 dogs, the fourth bar represents the 6-7 age group of dogs and shows shelter for 3 dogs, and the fifth bar represents the 8-9 age group of dogs and shows shelter for 0 dogs.
B
Image with description A bar graph represents the ages of dogs at five different shelters. The horizontal axis lists 0-1 to 8-9 and is labeled as age. The vertical axis lists 0 to 4 and is labeled as the number of dogs. There are 5 bars on the graph. The first bar represents the 0-1 age group of dogs and shows shelter for 1 dog, the second bar represents the 2-3 age group of dogs and shows shelter for 4 dogs, the third bar represents the 4-5 age group of dogs and shows shelter for 2 dogs, the fourth bar represents the 6-7 age group of dogs and shows shelter for 0 dogs, and the fifth bar represents the 8-9 age group of dogs and shows shelter for 1 dog.
C
Image with description A bar graph represents the ages of dogs at five different shelters. The horizontal axis lists 0-1 to 8-9 and is labeled as age. The vertical axis lists 0 to 4 and is labeled as the number of dogs. There are 5 bars on the graph. The first bar represents the 0-1 age group of dogs and shows shelter for 0 dogs, the second bar represents the 2-3 age group of dogs and shows shelter for 1 dog, the third bar represents the 4-5 age group of dogs and shows shelter for 2 dogs, the fourth bar represents the 6-7 age group of dogs and shows shelter for 4 dogs, and the fifth bar represents the 8-9 age group of dogs and shows shelter for 1 dog.
D
Image with description A bar graph represents the ages of dogs at five different shelters. The horizontal axis lists 0-1 to 8-9 and is labeled as age. The vertical axis lists 0 to 2 and is labeled as the number of dogs. There are 5 bars on the graph. The first bar represents the 0-1 age group of dogs and shows shelter for 2 dogs, the second bar represents the 2-3 age group of dogs and shows shelter for 1 dog, the third bar represents the 4-5 age group of dogs and shows shelter for 2 dogs, the fourth bar represents the 6-7 age group of dogs and shows shelter for 1 dog, and the fifth bar represents the 8-9 age group of dogs and shows shelter for 2 dogs.
3

Which of the following best explains why one graph appears skewed and one graph appears symmetric?

A
The intervals on the x -axis of the histogram are too large.
B
The interval on the box-and-whisker plot is too small.
C
The interval on the x -axis of the histogram is inconsistent.
D
The interval on the y -axis of the histogram is too small.
4

Describe the data set. Use >, <, or = to compare the mean with the median. Enter your answers in the boxes.

Answer:

>

5

How might the graph be redrawn to emphasize the difference between the cost per doctor visit for each of the three plans?

A
The interval of the y -axis could be changed to count by 5 s.
B
The scale on the y -axis could be changed to 25 - 40 .
C
The scale on the y -axis could be changed to 0 - 100 .
D
The interval of the y -axis could be changed to count by 20 s.
6

If the graph is redrawn so that the scale on the y -axis begins with zero, which aspect of the graph will change the most?

A
The graph will appear more skewed to the right.
B
The difference in the heights of the bars will not appear as great.
C
The difference in the heights of the bars will be more pronounced.
D
The graph will appear more skewed to the left.
7

Why is the graph misleading?

A
The x -axis scale shows the data is more clustered than it actually is.
B
The y -axis scale shows the data is more skewed than it actually is.
C
The scales are different on the x -axis and the y -axis.
D
The data is not distributed equally across the x -axis intervals.
8

Why is the plot misleading?

A
The plot shows that the data is skewed.
B
The plot shows duplicate data points.
C
There is not an equal number of data points for each stem.
D
The stem does not clearly show the outlier.
9

Which of the following best explains why one graph appears skewed and one graph appears symmetrical?

A
The scale of the box-and-whisker plot does not start at zero.
B
The scale of the stem-and-leaf plot is too small for the set of data.
C
The interval of the stem-and-leaf plot is not consistent.
D
The interval of the box-and-whisker plot is too large.
10

What was the range of points scored for the middle 50% of players? Enter your answer in the box.

Answer:

16

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