AnswersHCISD-Mathematical Models with Applications B-CR SUMMERData Representation

Data Representation Answers

18 verified answers
1
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How many runners won exactly 2 gold medals?

Answers:
Selection 1:1 runner
Selection 2:3 gold medals
Selection 3:10 runners
2
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How many gold medals did the most runners win?

Answer not available
3

How many total runners are represented?

Answer not available
4

How many hours of sleep are recommended for elementary-age children?

A
exactly 9 hours
B
exactly 10 hours
C
about 10 hours
D
about 12 hours
5

Question text not available

Answer not available
6

In March, April, and June it rained 2 inches. In February, May, and September it rained 1 inch. In August and October, it rained 3 inches. And in January it only rained 4 inches. Which line plot represents the data?

A
A line plot. There is 1 mark above 1, 1 above 2, 1 above 3, 1 above 4, 0 above 5.
Option A
B
A line plot. There are 5 marks above 1, 4 above 2, 3 above 3, 3 above 4, 0 above 5.
Option B
C
A line plot. There is 1 mark above 1, 1 above 2, 1 above 3, 2 above 4, 0 above 5.
Option C
D
A line plot. There are 3 marks above 1, 3 above 2, 2 above 3, 1 above 4, 0 above 5.
Option D
7

Which data set is shown by the stem and leaf plot?

A
5, 3, 6, 1, 4, 5, 8
B
5, 23, 26, 91, 94, 95, 208
C
500, 236, 9145, 208
D
500, 302, 602, 109, 409, 509, 820
8

These times, in seconds, were recorded in eight 20-yard dash attempts: 3.5, 2.9, 2.9, 3.4, 3.0, 2.8, 3.1, and 2.8. Which representation is best for comparing exact times?

A
A stem and leaf plot. The stems are 2, 3. The first column of leaves are 8, 0. The second column of leaves are 8, 1. The third column of leaves are 9, 4. The fourth column of leaves are 9, 5. Key: 3 line 1 = 3.1.
Option A
B
A line graph has attempts on the x-axis and seconds on the y-axis. Attempt 1, 3.5; attempt 2, 2.9; attempt 3, 2.9; attempt 4, 3.4; attempt 5, 3.0; attempt 6, 2.8; attempt 7, 3.1; attempt 8, 2.8.
Option B
C
A line plot. The are 0 marks above 1, 0 marks above 2, 4 marks above 3, and 4 marks above 4.
Option C
9

To display the number of female members in band class over the past five years, use a , because the data are . To display the responses of a survey that asked students what their favorite music type is, use a , because the data are .

Answers:
Selection 1:line graph
Selection 2:changing over time
Selection 3:bar graph
Selection 4:categorical
10

categorical✔ changing over timenot categoricalnot changing over time

Answer not available
11

✔ bar graphline graphline plotstem and leaf plot

Answer not available
12

✔ categoricalchanging over timenot categoricalnot changing over time

Answer not available
37

Which data representation would be most appropriate to represent each student who has a given number of siblings?

A
line graph
B
line plot
C
bar graph
D
stem and leaf plot
38

Which statements are true? Check all that apply.

A
A total of 34 students voted.
B
The longest bar on a bar graph would be for the “Playing video games” category.
C
The bars for “Watching movies” and “Playing sports” would be the same length.
D
It would be time-consuming to show the data in a line plot because the data values are large.
E
A line graph could be used to effectively represent the data.
39

Boys sent more text messages than girls during the . In the morning, girls sent about more text messages than boys. Both boys and girls sent the most text messages in the . During the afternoon, the students sent a total of approximately text messages.

Answers:
Selection 1:night
Selection 2:5
Selection 3:evening
Selection 4:40
40

Question text not available

Answer not available
41

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42

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