Learning Check Quiz - Scatter Plots and LOBF

What type of correlation does this scatter plot show?

• positive 
• negative
• no correlation
• nonlinear association

Tags

CCSS.HSS.ID.B.6

CCSS.HSS.ID.C.8

What is the type of correlation?

• Negative 
• no correlation
• positive 

Tags

CCSS.HSS.ID.B.6

CCSS.HSS.ID.C.8

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.HSA.CED.A.2

CCSS.HSS.ID.B.6

CCSS.HSS.ID.C.7

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?

• 65

• 92

• 68

• 76

Which of the following could be a possible line of best fit for the data?

• y = -5/2x + 20
• y = -x + 19
• y = x + 20
• y = 2/3x + 15 

Tags

CCSS.HSA.CED.A.2

CCSS.HSS.ID.B.6

CCSS.HSS.ID.C.7

Jules conducted a survey and asked 100 people how many years of education they have and what their annual income is. She used the results to make a scatter plot.

She should expect to see a __________________ association in her scatter plot.

When points cluster close to a line with a positive (+) slope, the correlation coefficient is almost zero.

• true

• false

A correlation of 1 means that there is a perfect linear relationship between two variables with a positive slope. ​

• true

• false

Which of the 6 scatter plots below has a correlation coefficient of -1.0?

• a.

• b.

• c.

• d.

• e.

This scatter plot shows a relationship between the age of a car and its value. Which best describes the relationship between the variables?

• Strong positive correlation

• Weak negative correlation

• Strong negative correlation

• No correlation