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Unit 6 - TEST

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Last updated about 3 hours ago
35 questions
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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.

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Noor 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 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.

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.

Question 5
5.

What type of association is indicated in the scatterplot?

Question 6
6.

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

Question 7
7.

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!

Question 8
8.

Talk about what the slope means in this problem!

Use the value in your explanation!

Question 9
9.

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

Use the value in your explanation!


Below is a 2-way table created from the 9th graders and transportation survey.
Question 10
10.

Use this space to fill the table first.

Question 11
11.
Question 12
12.
Question 13
13.
Question 14
14.
Question 15
15.
Question 16
16.
Question 17
17.

What percentage of 14 year-olds walk to school?

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

Question 18
18.

What percentage of 15 year-olds walk to school?

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

Question 19
19.

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 20
20.

Feel free to use this space to fill that table first.

Filling in the table here is OPTIONAL but I highly recommend it.

Question 21
21.
Question 22
22.
Question 23
23.
Question 24
24.
Question 25
25.
Question 26
26.
Question 27
27.
Question 28
28.
Question 29
29.
Question 30
30.
Question 31
31.
Question 32
32.
Question 33
33.

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

Question 34
34.

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

Question 35
35.

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

Strong Positive Association
No Association
Weak Positive Association
Strong Positive Association
No Association
Weak Positive Association
Weak Positive Association
No Association
Weak Negative Association
(d)
(d) 22 debates
C. y = -1/2x + 2
D. y = 1/2x + 2