AnswersConcepts in Probability and Statistics ARepresenting Data Sets with Histograms

Representing Data Sets with Histograms Answers

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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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2
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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
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.

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