Scatterplots

What is the first button you press to find the menu where you turn on the  STAT DIAGNOSTICS on your calculator?

• Alpha
• STAT
• Mode
• y=

What type of association does this graph have?

• positive
• negative
• none
• all of the above

Tags

CCSS.HSS.ID.B.5

What is this type of correlation?

• Negative 
• no association
• positive 

Tags

CCSS.HSS.ID.B.5

What is the line of best fit for this data?

• y=2.1x+7.097
• y=2x
• y=2.036x+1.286
• y=.964x+.982

What is the line of best fit?

• f(x)= 5x+1.82
• cannot be determined
• f(x)= 1.82x + 5.02
• f(x)= 1.1x + 4.2

Tags

CCSS.8.EE.B.5

What is the correlation coefficient of this date?

• -.778
• .605
• -.039
• 7.068

The scatter plot shows the relationship between the number of chapters and the total number of pages for several books.  Use the trend line to predict how many chapters would be in a book with 180 pages. 

• 12 chapters
• 15 chapters
• 18 chapters
• 21 chapters

Tags

CCSS.HSF.BF.A.2

The red line represents the line of best fit for the scatter plot. How many ice cream sales are expected if the temperature is 90°?

• 55
• 0
• 103
• 100

If the correlation coefficient is r=.987, what is the strength of the line of best fit compared to the data?

• Weak Positive
• Strong Positive
• Weak Negative
• Strong Negative

Tags

CCSS.HSS.ID.B.5

Mrs. Collins made a scatterplot to show the relationship between the number of absences and a student’s final exam score. Based on this scatterplot, a student with 6 absences should get approximately what score on the final exam? 

• 85
• 92
• 70
• 76