AnswersConcepts in Probability and Statistics ARepresenting Data Sets with Histograms

Representing Data Sets with Histograms Answers

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The histogram represents the number of hours band students practice their instruments. Use the drop-down menus to complete the statements.

Answers:
The histogram represents the number of hours band students practice their instruments. Use the drop-down menus to complete the statements.:number of students
The histogram represents the number of hours band students practice their instruments. Use the drop-down menus to complete the statements.:5
The histogram represents the number of hours band students practice their instruments. Use the drop-down menus to complete the statements.:8
2
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A peak: ✔ 651–700601–650451–500

A
✔ 651–700
B
601–650
C
451–500
3

According to the histogram, students spend fewer than 2 hours practicing.

Answer not available
4

What is an appropriate scale for the vertical axis?

Answer not available
5

Alonzo describes a histogram as having a cluster from 20–50, a frequency of 0 from 10–20, and a peak at 40–50. Which histogram is he describing?

A
Option
Option A
B
Option
Option B
C
Option
Option C
6

Which best describes the data for May–June and October–December?

A
clusters
B
no frequency
C
gaps
D
symmetry
7

Question text not available

Answers:
Selection 1:351–400
Selection 2:651–700
8

Zero frequency: 300–350✔ 351–400401–450

Answers:
Selection 1:351–400
Selection 2:651–700
9

The histogram shows the number of payphones that were active by year in a large city. How many payphones would you expect to be active between 1986 and 1990?

A
over 200
B
between 150 and 200
C
between 50 and 100
D
fewer than 50
10

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

A
The histogram is symmetrical.
B
The histogram is evenly distributed.
C
The cluster from 4 p.m.–10 p.m. means that most of the texts were sent in the afternoon and evening.
D
More texts were sent from 6 p.m.–8 p.m. than from 8 p.m.–10 p.m.
E
The peak from 4 p.m.–6 p.m. means that the highest number of texts was sent during this interval.
11

Dean describes the data in the histogram as having a cluster from 30–60 and a peak at 40–49. He says the intervals 0–9 and 80–89 show a 0 frequency. Lastly, he says that the graph is not symmetrical. Why is Dean incorrect?

A
The graph does not show a peak.
B
There is no cluster in this data set.
C
The graph does not show intervals with 0 frequency.
D
The graph is symmetrical.
12

The scores for today’s math quiz are 75, 95, 60, 75, 95, and 80. Explain the steps needed to create a histogram for the data.

Answer:

PENDING

13

The histogram shows the number of text messages sent by two high school juniors on one Monday. Which statement most reasonably explains the hours when 0 texts were sent?

A
The students were asleep and did not have phones turned on.
B
The students only had100 text messages available.
C
The students were in school and were not allowed to text.
D
Texting is done in clusters.
14

Question text not available

Answers:
Selection 1:20
Selection 2:number of days
Selection 3:0–100
15

Which are true statements about histograms? Check all that apply.

A
Data are organized by categories.
B
Data are organized in equal intervals.
C
Bars can go in any order.
D
Bars must appear in numerical order.
E
Bars are not touching.
F
Bars are always touching.
16

Which are true statements about histograms? Check all that apply.

A
Data are organized by categories.
B
Data are organized in equal intervals.
C
Bars can go in any order.
D
Bars must appear in numerical order.
E
Bars are not touching.
F
Bars are always touching.
17

The histogram represents the number of hours band students practice their instruments. Use the drop-down menus to complete the statements. The bars represent . According to the histogram, students spend 3 or more hours practicing. According to the histogram, students spend fewer than 2 hours practicing.

Answers:
Selection 1:number of students
Selection 2:5
Selection 3:8
18

Alonzo describes a histogram as having a cluster from 20–50, a frequency of 0 from 10–20, and a peak at 40–50. Which histogram is he describing?

A
Option
Option A
B
Option
Option B
C
Option
Option C
19

Which best describes the data for May–June and October–December?

A
clusters
B
no frequency
C
gaps
D
symmetry
20

Zero frequency: A peak:

Answer not available

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