Line of Best Fit

Front

What is a line of best fit used for?

Back

To make predictions

Front

What type of association does this graph have? Options: positive, negative, none, all of the above

Back

negative

Front

About how many male math teachers were there in 2006? Options: 15, 30, 35, 45

Back

35

Front

What type of association does this graph show?

Back

none

Front

Which sentence describes the relationship shown on this scatter plot? Options: As the temperature decreases, the visitors increase. , As the temperature increases, the number of visitors increases. , As the visitors increase, the temperature decreases. , No correlation

Back

As the temperature increases, the number of visitors increases. 

Front

What would be the correlation between study time and test grades? Options: positive, negative, none, cannot be determined

Back

positive

Front

What type of correlation is there between:
Time Spent Watching TV & Grades?

Back

Negative correlation

Front

This measures how strong or weak the relationship between 2 quantitative variables are.

Back

Correlation

Front

What does the value, r= -0.89, tell us about the linear relationship of two quantitative variables?

Back

Strong negative

Front

Determine the correlation coefficient of the given data:
Options: .9820, -.9643, 1.409, .6864

Back

.9820