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Unit 6 - TEST

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Last updated 4 days ago
35 questions
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Question 4
4.

As the age of a car increases, its value decreases.

Which scatter plot best represents this relationship?


For each graph, value is the variable on the y-axis and car age is the variable on the x-axis.

The coaches of a group debate team answered a survey about hours of debate, team practice, and number of team wins.

The graph shows the results of the survey.




Question 5a
5a.

What type of association is indicated in the scatterplot?

Question 5b
5b.

Based on these results, if a team practices 4 hours per week next season, which is the best estimate of the number of debates the team can expect to win?


Choose the BEST answer

Jasmine and her father planted a tree in their front yard 8 years ago. The scatterplot shows how the height of the tree increased each year.


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Question 6b
6b.

Talk about what the slope means in this problem!

Use the value in your explanation!

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Question 6c
6c.

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Question 1
1.

Describe the association seen on the scatterplot.

Question 2
2.

Describe the association seen on the scatterplot.

Question 3
3.

Describe the association seen on the scatterplot.

(b)
(c)
(d)
(c) 16 debates
(d) 22 debates
Question 6a
6a.

Which of the following most closely approximates the equation of the line of best fit for the data?

FEEL FREE TO DRAW A LINE OF BEST FIT IN THE SHOW YOUR WORK SPACE TO HELP YOU ANSWER THIS QUESTION!

Talk about what the y-intercept means in the problem!

Use the value in your explanation!


A 2-way table was created from the 9th graders and transportation survey.

Question 7
7.

Use this space to fill the table first.

Question 8
8.
Question 9
9.
Question 10
10.
Question 11
11.
Question 12
12.
Question 13
13.
Question 14
14.

What percentage of 14 year-olds walk to school?

Enter a percentage like 50%. Round your answer to the nearest whole percentage.

Question 15
15.

What percentage of 15 year-olds walk to school?

Enter a percentage like 50%. Round your answer to the nearest whole percentage.

Question 16
16.

What percentage of students who walk to school are 15 year-olds?

Enter a percentage like 50%. Round your answer to the nearest whole percentage.

Students were asked to report their age and how many times a day they typically wash their hands.
Of the 738 13 year-olds, 66 said they wash their hands at most once a day, 583 said two to seven times per day, and 89 said eight or more times per day.

Of the 14 year-olds, 2 said they wash their hands at most once a day, 160 said two to seven times per day, and 42 said eight or more times per day.
Question 17
17.

Use this space to fill that table first.

Question 18
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Question 19
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Question 20
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Question 21
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Question 22
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Question 23
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Question 24
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Question 25
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Question 26
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Question 27
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Question 28
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Question 29
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Question 30
30.

What percentage of those surveyed are 14 years old?

Enter a percentage like 70%. Round your answer to the nearest whole percentage.

Question 31
31.

What percentage of those who wash their hands 8 or more times per day are 13 year olds?

Enter a percentage like 70%. Round your answer to the nearest whole percentage.

Question 32
32.

What is the percentage that those who are 13 wash their hands 8 or more times a day?

Enter a percentage like 70%. Round your answer to the nearest whole percentage.

Weak Positive Association
No Association
Weak Negative Association
Weak Positive Association
Strong Positive Association
Weak Negative Association
Strong Negative Association
No Association
Weak Positive Association
C. y = -1/2x + 2
D. y = 1/2x + 2