AnswersConcepts in Probability and StatisticsData Distributions

Data Distributions — Test Answers

24 verified answers
1
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The line graph shows the growth of a plant over time. How many inches did the height of the plant increase between weeks 3 and 4?

A
8
B
4
C
2
D
12
2
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Where is the gap in the data?

A
0
B
4
C
8
D
2
3

What is the center of the data in the dot plot?

A
5
B
2 point 5
C
2
D
3
4

The stem and leaf plot shows the number of points a basketball team scored each game during its 15-game season. In how many games did the team score at least 70 points?

A
8
B
5
C
10
D
4
5

Which compares the modes of the data?

A
The mode for the students is 4 and the mode for the teachers is 8.
B
The mode for the students is 2 and the mode for the teachers is 1.
C
The mode for the students is 2 and the mode for the teachers is 4.
D
The mode for the students is 0 and the mode for the teachers is 1.
6

Which statement compares the shape of the dot plots?

A
The data is spread widely across both plots.
B
The data is spread widely across Plot B, but not across Plot A.
C
There is a gap in both plots.
D
There is a gap in Plot A, but not in Plot B.
8

Question text not available

A
Image with description A two-column table has headings Pull-ups Completed in One Minute and Tally. One pull-up completed has 2 tally marks. Two pull-ups completed has 5 tally marks. Three pull-ups completed has 3 tally marks. One tally mark completed has 1 tally mark. Two tally marks completed has 2 tally marks. Under the table, a dot plot is titled Pull-ups Completed in One Minute. The number line goes from 0 to 6 by ones. There are two dots above 1. There are two dots above 2. There are three dots above 3. There is one dot above 4. There are two dots above 5.
B
Image with description A two-column table has headings Pull-ups Completed in One Minute and Tally. One pull-up completed has 2 tally marks. Two pull-ups completed has 5 tally marks. Three pull-ups completed has 3 tally marks. One tally mark completed has 1 tally mark. Two tally marks completed has 2 tally marks. Under the table, a dot plot is titled Pull-ups Completed in One Minute. The number line goes from 0 to 6 by ones. There are two dots above 1. There are five dots above 2. There are three dots above 3. There is one dot above 4. There is one dot above 5.
C
Image with description A two-column table has headings Pull-ups Completed in One Minute and Tally. One pull-up completed has 2 tally marks. Two pull-ups completed has 5 tally marks. Three pull-ups completed has 3 tally marks. One tally mark completed has 1 tally mark. Two tally marks completed has 2 tally marks. Under the table, a dot plot is titled Pull-ups Completed in One Minute. The number line goes from 0 to 5 by ones. There are two dots above 1. There are five dots above 2. There are three dots above 3. There is one dot above 4.
D
Image with description A two-column table has headings Pull-ups Completed in One Minute and Tally. One pull-up completed has 2 tally marks. Two pull-ups completed has 5 tally marks. Three pull-ups completed has 3 tally marks. One tally mark completed has 1 tally mark. Two tally marks completed has 2 tally marks. Under the table, a dot plot is titled Pull-ups Completed in One Minute. The number line goes from 0 to 6 by ones. There are two dots above 1. There are five dots above 2. There are three dots above 3. There is one dot above 4. There are two dots above 5.
9

In which month was the peak, the largest deposit, made?

A
January
B
August
C
July
D
June
10

Which is the best description for this histogram?

A
It has intervals of 5.
B
It has 2 clusters.
C
It is not evenly distributed.
D
It is symmetrical.
11

What is the spread of the data in the dot plot?

A
from 1 to 8
B
from 0 to 8
C
from 1 to 5
D
from 0 to 5
12

Which is an example of a statistical question?

A
question 1
B
question 4
C
question 3
D
question 2
13

Which statement most reasonably explains the hours when zero calls were received?

A
Medera lost her phone for two hours.
B
Medera turned the phone off while playing in a soccer game.
C
Medera’s phone can only receive 22 calls a day.
D
Medera only receives calls in clusters.
14

Which are examples of non-statistical questions?

A
questions 2 and 3
B
questions 1 and 2
C
questions 2 and 4
D
questions 1 and 3
15

What is the upper and lower quartile of this set of data? 15, 19, 20, 25, 31, 38, 41

A
lower quartile: 15 upper quartile: 41
B
lower quartile: 25 upper quartile: 38
C
lower quartile: 19 upper quartile: 25
D
lower quartile: 19 upper quartile: 38
16

The dot plot below shows 6 data points with a mean of 16. Open image in full-screen view What is the absolute deviation at 19?

A
3
B
8
C
4
D
7
17

Students reported volunteering at the animal shelter during the last 6 months for 25, 36, 31, and 32 hours. What is the mean absolute deviation for the number of hours students volunteered? Round to the nearest tenth.

A
3
B
0
C
4
D
6
18

What is the range for this set of data? 7, 15, 12

A
5
B
8
C
3
D
12
19

Nicole received the following scores on her last 10 math assignments. 100, 88, 76, 78, 92, 94, 84, 98, 82, 90 What is the Nicole’s median score?

A
89
B
93
C
24
D
88
20

What percentage of the data values represented on a box plot falls between the lower quartile and the upper quartile?

A
75 percent
B
25 percent
C
50 percent
D
33 1 third percent
21

What is the mean of the data set? 85, 97, 84, 88, 95, 100, 81

A
88
B
90
C
83
D
19

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