Analyzing Dot Plots — Quiz Answers

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1
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Which statement correctly compares the shape of the data in the plots?

A
There is a gap in the seventh-grade data, but not in the fifth-grade data.
B
In the seventh-grade data, the left side of the data looks similar to the right side, but not in the fifth-grade data.
C
Both sets of data have a peak at 5 hours and 6 hours.
D
In both sets, the data cluster around 3 hours.
2
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Which statement correctly compares the means of the data in the dot plots?

A
The mean for Mr. McIntyre’s class is about 1 more than the mean for Mrs. Ramos’s class.
B
The mean for Mr. McIntyre’s class is about 2 more than the mean for Mrs. Ramos’s class.
C
The mean for Mrs. Ramos’s class is about 2 more than the mean for Mr. McIntyre’s class.
D
The mean for Mrs. Ramos’s class is about 1 more than the mean for Mr. McIntyre’s class.
3

Which statement comparing the shapes of the dot plots is true?

A
Both the Highlands and the Lowlands data points are clustered toward the left of the plot.
B
The Highlands data points are clustered toward the left of the plot, while the Lowlands data points are evenly distributed.
C
The Highlands data points are evenly distributed around the center, while the Lowlands data points are clustered toward the left of the plot.
D
Both the Highlands and the Lowlands data points are evenly distributed around the center.
4

Which statement compares the shape of the dot plots?

A
Only the fifth-grade data points are distributed fairly evenly.
B
Only the seventh-grade data points are clustered toward the left of the plot.
C
Only the seventh-grade data points are distributed fairly evenly.
D
Only the fifth-grade data points are clustered toward the left of the plot.
5

Which is a true statement for most of the data in each plot?

A
Most of the data in each plot are around 54.
B
Most of the data in each plot are greater than 48.
C
Most of the data in each plot are less than 48.
D
Most of the data in each plot are around 52.
6

Katelyn says that her biology test scores are much higher than her math test scores. Based on the shape of the data, which explains whether Katelyn is correct?

A
Katelyn is not correct because the middle of the data is about the same for each plot.
B
Katelyn is not correct because her score of 83 in biology is lower than any of her math scores.
C
Katelyn is correct because her biology scores have a much wider range than her math scores.
D
Katelyn is correct because the score of 90 in biology is higher than any of her math scores.
8

When comparing the shapes of the two sets of data, what conclusion can someone draw?

A
The girls are generally taller than the boys.
B
There is an outlier in the data for the boys, but not for the girls.
C
The shortest boy is taller than the shortest girl.
D
The range for the girls is greater than the range for the boys.
9

Which statement correctly compares the measures of center in the two sets of data?

A
Both the mean and median are greater for Plot A than for Plot B.
B
Both the mean and median are greater for Plot B than for Plot A.
C
Plot B has a greater median than Plot A, but Plot A has a greater mean.
D
Plot A has a greater median than Plot B, but Plot B has a greater mean.
10

When comparing the two sets of data, which is a true statement?

A
The two sets of data do not overlap.
B
There are gaps in both sets of data.
C
The rainfall peaks at a lower value in the Lowlands.
D
The ranges are the same.

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