9.1 and 9.2 Check In

What is the value of y for the point with an x-value of 5?

What is the value of x for the point with a y-value of 8?

Describe the relationship between the data.

• positive linear relationship

• negative linear relationship

• nonlinear relationship

• no relationship

Which equation represents an appropriate line of fit for the data in the table?

• y=6x+35

• y=−4x+48

• y=4x+24

• y=x+30

The scatter plot shows the heights (in inches) and the shoe sizes of eight men. What is the height of the man whose shoe size is 12? The man is ___ inches tall

Select all statements that describes the data. There may be more than one

• There is a positive linear relationship.

• There is a negative linear relationship.

• There is a nonlinear relationship.

• There is a cluster in the data.

• There is one outlier in the data.

If you found a correlation coefficient (r) of 0 what would this mean?

• There is a strong positive correlation

• There is a weak positive correlation

• There is a strong negative correlation.

• There is no correlation.

What correlation coefficient would show a strong negative correlation.

• 0.99

• -0.98

• 0

• -0.75

Which correlation coefficient would show a weak positive relationship

• 0.98

• 0

• -0.90

• 0.63

What does a correlation coefficient tell us?

• How long the line of best fit is.

• How many points are on the scatter plot.

• How precise the line of best fit is?

• I don't know, some number.