Scatterplots & Correlation

Front

Do you have your notes out?

Back

Of course! I ALWAYS DO!

Front

What type of correlation does the following scatterplot show? Options: Positive, Negative, None

Back

Positive

Front

Which scatter plot shows no relationship? Options: Graph A, Graph B, Graph C, Graph D

Back

Graph D

Front

Restaurant pizza prices data table: Calculate the linear regression equation.

Back

y = 1.5x + 12

Front

What is the dependent variable? Options: Sunglasses Sold, Ice Cream Sales, Independent

Back

Ice Cream Sales

Front

Predict what the next point would be on the scatterplot.

Back

(30,100)

Front

What is a best-fit line used for?

Back

To make predictions

Front

The annual profits for a company are given in a table where x represents the number of years since 1992, and y represents the profit in thousands of dollars. Write the linear regression equation that represents this set of data, rounding all coefficients to the nearest hundredth. Estimate the year in which the profits would reach 378 thousand dollars.

Back

2003

Front

What is the independent variable?

Back

Precipitation

Front

Find the slope.

Back

3/2