1.
(06.01 LC)
What type of association does the graph show between x and y? (5 points)
A graph shows scale on x axis and y axis from 0 to 12 at increments of 1. Dots are made at ordered pairs 1, 1 and 2, 1.1 and 3, 1.3 and 4, 1.7 and 5, 2 and 6, 2.5 and 7, 3.1 and 8, 4.2 and 9, 6 and 10, 10.
A .Linear positive association
B. Nonlinear positive association
C. Linear negative association
D. Nonlinear negative association
2.
(06.01 LC)
Which point on the scatter plot is an outlier? (5 points)
A graph shows scale on x axis from 0 to 14 at increments of 2 and a scale on y axis from 0 to 70 at increments of 10. Dots are made at ordered pairs 0, 0 and 1.8, 4 and 2.1, 6 and 3, 11 and 3.9, 13 and 2.8, 18 and 4.5, 19 and 5.8, 25 and 6.4, 22 and 4.5, 26 and 5.5, 26 and 5.8, 30 and 5.7, 31 and 6.5, 30 and 7, 35 and 7.4, 38 and 7.5, 41 and 8.8, 42. The point 9, 50 is labeled as A, the point 2, 60 is labeled as B, the point 2, 11 is labeled as C, and the point 0, 0 is labeled as D.
A. Point A
B. Point B
C. Point C
D. Point D
3.
(06.01 MC)
A scatter plot is made with the data shown.
Number of Waiters at a Restaurant
5
6
7
8
9
10
11
12
13
Customer Service Rating
4
2
10
7
1
2
8
9
5
What type of association will the scatter plot for this data represent between the number of waiters at a restaurant and its customer service rating? (5 points)
A. No association
B. Positive linear association
C. Negative linear association
D. Positive nonlinear association
4.
(06.02 LC)
What is most likely the line of best fit for this scatter plot? (5 points)
Graph shows numbers from 0 to 10 at increments of 1 on the x axis and numbers from 0 to 18 at increments of 2. Scatter plot shows ordered pairs 1, 4 and 2, 7 and 3, 9 and 4, 10 and 5, 10 and 6, 12 and 7, 14 and 8, 15 and 9, 16 and 10, 18 and 11, 20 and 12, 22. A line labeled A joins ordered pair 0, 2.5 and 12.5, 22. A line labeled B joins ordered pairs 0, 3.5 and 14, 16. A line labeled C joins ordered pairs 0, 3.5 and 14, 11. A line labeled D joins ordered pairs 0, 4 and 14, 5.5.
A. Line A
B. Line B
C. Line C
D. Line D
5.
(06.02 LC)
A scatter plot is shown:
A graph shows numbers from 0 to 10 on the x axis at increments of 1 and the numbers 0 to 15 on the y axis at increments of 1. The ordered pairs 0, 15 and 1, 14 and 2, 10 and 3, 9 and 4, 8 and 5, 8 and 6, 7 and 7, 5 and 8, 3 and 9, 2 and 10, 0 are shown on the graph.
Which graph best represents the line of best fit for this scatter plot? (5 points)
A. A graph shows numbers from 0 to 10 on the x axis at increments of 1 and the numbers 0 to 15 on the y axis at increments of 1. The ordered pairs 0, 15 and 1, 14 and 2, 10 and 3, 9 and 4, 8 and 5, 8 and 6, 7 and 7, 5 and 8, 3 and 9, 2 and 10, 0 are shown on the graph. A straight line joins the ordered pairs 0, 15 and 10, 8.
B. A graph shows numbers from 0 to 10 on the x axis at increments of 1 and the numbers 0 to 15 on the y axis at increments of 1. The ordered pairs 0, 15 and 1, 14 and 2, 10 and 3, 9 and 4, 8 and 5, 8 and 6, 7 and 7, 5 and 8, 3 and 9, 2 and 10, 0 are shown on the graph. A straight line joins the ordered pairs 0, 14.3 and 10, 0.4.
C. A graph shows numbers from 0 to 10 on the x axis at increments of 1 and the numbers 0 to 15 on the y axis at increments of 1. The ordered pairs 0, 15 and 1, 14 and 2, 10 and 3, 9 and 4, 8 and 5, 8 and 6, 7 and 7, 5 and 8, 3 and 9, 2 and 10, 0 are shown on the graph. A straight line joins the ordered pairs 0, 15 and 3, 0.
D. A graph shows numbers from 0 to 10 on the x axis at increments of 1 and the numbers 0 to 15 on the y axis at increments of 1. The ordered pairs 0, 15 and 1, 14 and 2, 10 and 3, 9 and 4, 8 and 5, 8 and 6, 7 and 7, 5 and 8, 3 and 9, 2 and 10, 0 are shown on the graph. A straight line joins the ordered pairs 0, 15 and 10, 13.
6.
(06.02 MC)
A scatter plot with a line is shown:
Graph shows numbers from 0 to 10 at increments of 1 on the x axis and number s from 0 to 15 at increments of 1 on the y axis. Scatter plot shows ordered pairs 0, 1 and 1, 1 and 2, 3 and 3, 6 and 4, 6 and 5, 8 and 6, 9 and 7, 10 and 8, 12 and 9, 13 and 10, 15. A line joins ordered pairs 0, 2 and 7, 15.
Which statement is most likely correct about the line? (5 points)
A. It can be a line of best fit because it is close to most data points.
B. It can be a line of best fit because it passes through all the data points.
C. It cannot be a line of best fit because it is not close to most of the points.
D. It cannot be the line of best fit because it does not show a positive association.
7.
(06.04 LC)
The equation of the line of best fit of a scatter plot is y = 8x − 1. What is the slope of the equation? (5 points)
A. −8
B. −1
C. 1
D. 8
8.
(06.04 MC)
John drew the line of best fit on the scatter plot shown.
A graph is shown with scale along x axis from 0 to 10 at increments of 1 and scale along y axis from 0 to 15 at increments of 1 and scale along y axis from 0 to 15 at increments of 1. The ordered pairs 0, 3 and 1, 2 and 2, 4 and 3, 6 and 4, 6 and 5, 8 and 6, 10 and 7, 11 and 8, 12 and 9, 12 and 10, 14 are shown on the graph. A straight line joins the ordered pairs 0, 2 and 10, 14.
What is the equation of this line of best fit in slope-intercept form? (5 points)
A. y = 2x + 6 over 5
B. y = 5 over 6x + 2
C. y = 2x + 5 over 6
D. y = 6 over 5x + 2
9.
(06.04 HC)
The graph shows Wilson's science scores versus the number of hours spent doing science homework.
A graph titled Wilsons Science Scores shows Hours of Practice in a Week on x axis and Science Scores on y axis. The x axis scale is shown from 0 to 5 at increments of 1, and the y axis scale is shown from 0 to 50 at increments of 5.The ordered pairs 0, 15 and 0.5, 18 and 1, 18 and 1.5, 25 and 2, 30 and 2.5, 35 and 3, 40 and 3.5, 43 and 4, 41 and 4.5, 45 and 5, 48 are shown on the graph. A straight line joins the ordered pairs 0, 14.9 and 5, 50.
What will most likely be Wilson's approximate science score if he does science homework for 6 hours a week? (5 points)
A. 33 points
B. 42 points
C. 52 points
D. 55 points
10.
(06.05 LC)
The two-way table shows the number of students in a class who like mathematics and/or science.
Like Mathematics
Do Not Like Mathematics
Total
Like Science
18
?
38
Do Not Like Science
16
6
32
Total
34
26
70
What is the missing number in the table? (5 points)
A. 10
B. 12
C. 20
D. 56
11.
(06.05 LC)
The two-way table shows the number of students in a school who like baseball and/or tennis.
Like Baseball
Do Not Like Baseball
Total
Like Tennis
22
18
40
Do Not Like Tennis
24
36
60
Total
46
54
100
How many more students like baseball than tennis? (5 points)
A. 2
B. 4
C. 5
D. 6
12.
(06.05 MC)
Clara surveyed the students at her school to find out if they like pies and/or sandwiches. The results of her survey are shown in the two-way table below:
Like Pies
Do Not Like Pies
Total
Like Sandwiches
25
43
68
Do Not Like Sandwiches
26
6
32
Total
51
49
100
If a student does not like sandwiches, what is the probability that student also does not like pies? (5 points)
A. 81.3%
B. 26.0%
C. 23.1%
D. 18.8%
13.
(06.05 MC)
In a survey conducted at a school, students were asked if they like fruit or candy. The results are shown in the two-way table below:
Like Fruit
Do Not Like Fruit
Total
Like Candy
36
28
64
Do Not Like Candy
20
16
36
Total
56
44
100
What is the probability that a student likes fruit given that they like candy? (5 points)
A. 56.3%
B. 62.5%
C. 65.6%
D. 70.3%
NO, please anwer all my questions 1-12
1. B. Nonlinear positive association
2. A. Point A
3. B. Positive linear association
4. D. Line D
5. A. A graph shows numbers from 0 to 10 on the x axis at increments of 1 and the numbers 0 to 15 on the y axis at increments of 1. The ordered pairs 0, 15 and 1, 14 and 2, 10 and 3, 9 and 4, 8 and 5, 8 and 6, 7 and 7, 5 and 8, 3 and 9, 2 and 10, 0 are shown on the graph. A straight line joins the ordered pairs 0, 15 and 10, 8.
6. A. It can be a line of best fit because it is close to most data points.
7. D. 8
8. B. y = 5 over 6x + 2
9. C. 52 points
10. B. 12
11. B. 4
12. D. 18.8%