Correlation Quick Check
2 of 52 of 5 Items
Question
Use the image to answer the question.
An illustration shows a scatterplot with the x-axis and the y-axis labeled. Eight points are plotted on the graph in a downward sloping direction from top left to bottom right.
Interpret the scatterplot to determine what type of association the scatterplot shows.(1 point)
Responses
The graph shows a positive association.
The graph shows a positive association.
The graph shows a negative association.
The graph shows a negative association.
The graph shows a non-linear association.
The graph shows a non-linear association.
The scatter plot shows no association.
The graph shows a negative association.
Use the tables to create scatterplots and determine which scatterplot shows a linear association.(1 point)
Responses
x 5 8 2 4 6 12 10 1 3 7
y 550 800 250 500 500 400 650 150 400 750x 5 8 2 4 6 12 10 1 3 7 y 550 800 250 500 500 400 650 150 400 750
x 5 8 2 4 6 12 10 1 3 7
y 550 800 250 300 700 1000 650 300 100 700x 5 8 2 4 6 12 10 1 3 7 y 550 800 250 300 700 1000 650 300 100 700
x 5 8 2 4 6 12 10 1 3 7
y 800 700 350 450 500 1000 900 250 400 750x 5 8 2 4 6 12 10 1 3 7 y 800 700 350 450 500 1000 900 250 400 750
x 5 8 2 4 6 12 10 1 3 7
y 550 800 350 450 700 1000 900 250 400 750x 5 8 2 4 6 12 10 1 3 7 y 550 800 350 450 700 1000 900 250 400 750
The first set of data (x 5 8 2 4 6 12 10 1 3 7, y 550 800 250 500 500 400 650 150 400 750) shows a linear association.
Correlation Quick Check
4 of 54 of 5 Items
Question
Use the tables to create scatterplots and determine which scatterplot shows a non-linear association.(1 point)
Responses
x 50 46 80 59 78 64 68 53 70 68
y 35 30 75 45 70 50 55 36 62 67x 50 46 80 59 78 64 68 53 70 68 y 35 30 75 45 70 50 55 36 62 67
x 50 46 80 59 78 64 68 53 70 68
y 90 100 57 80 60 75 72 82 70 67x 50 46 80 59 78 64 68 53 70 68 y 90 100 57 80 60 75 72 82 70 67
x 50 46 98 59 78 64 68 53 70 72
y 75 71 90 55 70 100 90 25 40 76x 50 46 98 59 78 64 68 53 70 72 y 75 71 90 55 70 100 90 25 40 76
x 50 46 90 59 78 64 68 53 70 72
y 75 71 100 80 90 82 85 77 87 89
The third set of data (x 50 46 98 59 78 64 68 53 70 72, y 75 71 90 55 70 100 90 25 40 76) shows a non-linear association.
Use the tables to create scatterplots and determine which scatterplot shows a linear association.(1 point)
Responses
x 5.0 4.6 8.5 5.9 7.8 5.3 7.0 7.2
y 12.0 9.0 15.0 11.0 13.0 8.0 14.5 10.0x 5.0 4.6 8.5 5.9 7.8 5.3 7.0 7.2 y 12.0 9.0 15.0 11.0 13.0 8.0 14.5 10.0
x 5.0 4.6 8.5 7.8 6.4 6.8 7.0 7.2
y 3.7 2.7 6.5 2.0 5.6 3.0 7.8 6.7x 5.0 4.6 8.5 7.8 6.4 6.8 7.0 7.2 y 3.7 2.7 6.5 2.0 5.6 3.0 7.8 6.7
x 5.0 4.6 5.9 7.8 6.4 6.8 5.3 7.2
y 9.5 9.0 11.0 13.0 11.5 12.0 10.0 12.5x 5.0 4.6 5.9 7.8 6.4 6.8 5.3 7.2 y 9.5 9.0 11.0 13.0 11.5 12.0 10.0 12.5
x 5.0 4.6 8.5 7.8 6.8 5.3 7.0 7.2
y 12.0 8.5 6.0 10.0 12.0 10.0 12.0 10.0x 5.0 4.6 8.5 7.8 6.8 5.3 7.0 7.2 y 12.0 8.5 6.0 10.0 12.0 10.0 12.0 10.0