AnswersConcepts in Probability and Statistics ARepresenting Data Sets with Histograms

Representing Data Sets with Histograms Answers

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1
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To pass science, a student must earn at least a grade of 70. How many students failed this science class?

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Answer not available
2
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What can be concluded about the spread of the histogram?

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A
The left side of the histogram is the mirror image of the right side.
B
The histogram is not symmetrical.
C
The histogram is evenly distributed.
D
The left side of the histogram has a cluster.
3

Which statements about the histogram are true? Check all that apply.

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A
The histogram shows that nine students had grades of 80 or higher.
B
The histogram shows there were 22 students in the class.
C
The histogram shows there were 25 students in the class.
D
The histogram is symmetrical.
E
The histogram has a peak.
F
The histogram shows the data is evenly distributed.
G
The histogram shows a gap in the data.
4

Which statement about histograms is true?

A
Data is organized in categories.
B
Data appears as bars that are all about the same height.
C
Data is organized in equal intervals.
D
Data appears as bars that do not touch.
5

Alexandra kept track of her salary for 15 weeks and created the histogram below.What does the gap from 21–30 tell Alexandra about her weekly salary?

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A
She did not work that week.
B
Her salary was between 21 and 30 dollars.
C
None of her paychecks were between 21 and 30 dollars.
D
She only had 14 paychecks.
6

Julia had nine months to earn money for a school trip. The histogram shows Julia’s monthly deposits into her savings account.Which best describes the data for June, July, and August?

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A
a cluster
B
a gap
C
low frequency
D
symmetric
7

Which is the best description for this histogram?

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A
It is symmetrical.
B
It has 2 clusters.
C
It is not evenly distributed
D
It has intervals of 5.
8

Read the directions for creating a histogram.1. Label the x-axis and choose the interval.2. Calculate the frequency of each interval.3. Label the y-axis and determine the scale.4. 5. Create a title.Which is missing from step 4?

A
Add the data for each interval.
B
Put a point on each line of the y-axis that has data.
C
Put the data in order in the table.
D
Create the bars.
9

Maria kept a log of the number of miles she jogged each time she went for a run as she trained for an upcoming marathon. She displayed the logged runs in the histogram below.What is the range of the number of miles Maria jogged?

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A
0 to 7
B
0 to 7.99
C
1 to 7.99
D
1 to 8
10

Henry took a survey to determine how many rooms were in each house in his neighborhood. He created the histogram from his data.What is the range of rooms in Henry’s histogram?

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A
The houses surveyed had between 1 and 10 rooms.
B
The histogram shows a range of 5 to 6 rooms.
C
The houses surveyed had between 0 and 6 rooms.
D
The histogram shows a range of 1 to 5 rooms.
11

The histogram represents the time it takes employees to get to work each morning.Which statement correctly describes the data?

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A
The data is skewed left because the time it takes employees to get to work tails off to the left.
B
The data is skewed left because the time it takes employees to get to work tails off to the right.
C
The data is skewed right because the time it takes employees to get to work tails off to the right.
D
The data is skewed right because the time it takes employees to get to work tails off to the left.
12

Johanna graphed the number of calls she made during one day. How many calls were made before 6 p.m.? [BLANK]

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Answer not available
13

Kona’s mother wanted to find out how many minutes her family spends on the phone for each call made. She put her data in a table after a week of observation as shown below. She asked Kona to make a histogram from the data.MinutesNumber of Calls1 - 526 - 10511 - 15616 - 201021 - 25726 - 30231 - 35136 - 40041 - 45246 - 501Which chart has the correct setup for Kona’s histogram?

A
A 2-column table with 4 rows tilted Time on Phone. Column 1 has entries interval use, appropriate scale, vertical axis represents, horizontal axis represents. Column 2 has entries 10, 0 to 12, minutes on phone, number of calls.
Option A
B
A 2-column table with 4 rows tilted Time on Phone. Column 1 has entries interval use, appropriate scale, vertical axis represents, horizontal axis represents. Column 2 has entries 10, 1 to 12, number of calls, minutes on phone.
Option B
C
A 2-column table with 4 rows tilted Time on Phone. Column 1 has entries interval use, appropriate scale, vertical axis represents, horizontal axis represents. Column 2 has entries 5, 1 to 12, minutes on phone, number of calls.
Option C
D
A 2-column table with 4 rows tilted Time on Phone. Column 1 has entries interval use, appropriate scale, vertical axis represents, horizontal axis represents. Column 2 has entries 5, 0 to 12, number of calls, minutes on phone.
Option D
14

The histogram shows the number of cell phone calls received by Medera, a middle school student, one Saturday from 10 a.m. to 10 p.m. Which statement most reasonably explains the hours when zero calls were received?

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A
Medera turned the phone off while playing in a soccer game.
B
Medera’s phone can only receive 22 calls a day.
C
Medera only receives calls in clusters.
D
Medera lost her phone for two hours.
15

Miguel made a histogram to show the ages of all the participants involved in a fund-raiser. Which part of the histogram did Miguel forget to create?

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A
Miguel forgot to choose the intervals.
B
Miguel forgot to create the frequency table.
C
Miguel forgot to create the title.
D
Miguel forgot to put spaces between the bars.
16

Which statement about a histogram is true?

A
A cluster means the frequency is zero.
B
If the graph has a cluster, the data is evenly distributed.
C
A mirror image of the left and right side of a histogram means there is a peak in the middle.
D
A peak is a bar that is higher than the other bars around it.
17

The histogram shows how many jogging runs Maria made for each interval of miles. Which statement about the histogram is true?

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A
The majority of Maria’s runs were short, two-mile runs.
B
More than half Maria’s runs were less than five miles each.
C
The majority of Maria’s runs were between five and six miles.
D
At least 15 of Maria’s runs were more than four miles each.
18

What is the best description of the data in the histogram?

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A
The data set is symmetrical.
B
The data interval is 4.
C
The data set has a peak.
D
The data set has a cluster.
19

The histogram represents the number of boxes of colored pencils ordered by classrooms.Which interval includes the outlier?

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A
25–29 boxes
B
30–34 boxes
C
45–49 boxes
D
55–59 boxes

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