Match each situation with its level and sign of correlation. A correlation with an absolute value larger than 0.7 is considered strong.
Weak Positive Correlation
Strong Positive Correlation
Weak Negative Correlation
Strong Negative Correlation
1 point
1
Question 2
2.
Select all the values for r that indicate a positive slope for the line of best fit.
1 point
1
Question 3
3.
The correlation coefficient, r, is given for several different linear models for a data set. Sort the r values from best fit (top) to worst fit (bottom).
-0.34
-0.82
0.01
-0.95
1 point
1
Question 4
4.
Which of the values below is the best estimate of the correlation coefficient for the line of best fit shown in the scatter plot? Explain your answer.
A: -0.9
B: -0.4
C: 0.4
D: 0.9
1 point
1
Question 5
5.
Enter the data below as a table
We have released a new and improved Graphing question type! Students will no longer be able to answer this question.
1 point
1
Question 6
6.
What is the equation of the line of best fit for the data?
1 point
1
Question 7
7.
What is the correlation coefficient for the data?
1 point
1
Question 8
8.
Enter the data below as a table
We have released a new and improved Graphing question type! Students will no longer be able to answer this question.
1 point
1
Question 9
9.
What is the equation of the line of best fit for the data?
1 point
1
Question 10
10.
What is the correlation coefficient for the data?
0 points
0
Question 11
11.
What do you think s and h might stand for in the data table?