Weekly MAD/SD/Corr

What kind of correlation does this scatterplot show?

• negative correlation
• no correlation
• positive correlation

A baseball coach graphs some data and finds the line of best fit. The equation for the line of best fit is y = 0.32x – 20.51, where x is the number of times at bat and y is the number of hits. How many hits should he expect from a player who is at bat 175 times?

• 35 hits

• 45 hits

• 609 hits

• 62 hits

Mr. Van made a graph to represent the time his students spent studying for their test and their actual test score. Which is the correct equation for the line of best fit?

• y = 1.4x + 55

• y = 1.4x – 84

• y = 0.72x + 60

• y = 0.72 + 56

Which type of graph is this?

• Line graph

• Bar Graph

• Scatter Plot

• Pie graph

Which scatterplot suggests a linear relationship between x and y?

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• 
• 
• 

The scatter plot below shows the number of books read by students in Mrs. Dormevil's English class and their final grades. Which statement represents the best description about the line of best fit?

• The more books students read, the lower their English grade.
• The more books students read, the higher their English grade.
• No relationship exists between the number of books students read and their English grades. 

You are looking for a correlation between human height and human weight

• scatter plot or line graph

• bar graph

• histogram

• pie chart

Choose a scatter plot that best matches the following data.

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• 
• 
• 

Which scatter plot shows a linear relationship between x and y?

• Graph A
• Graph B
• Graph C
• Graph D

Which type of regression model does the scatter plot appear to show?

• linear

• exponential

• quadratic