HC: Scatter Plots and Data

What type of correlation does this graph have?

• Negative

• no association

• positive

What type of correlation does this graph have?

• positive

• negative

• none

• all of the above

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 12 absences should get approximately what score on the final exam?

• 60

• 92

• 70

• 76

Which sentence describes the relationship shown on this scatter plot?

• 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

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 pages would be in a book with 19 chapters.

• 150 pages

• 170 pages

• 190 pages

• 210 pages

What is the total number of students speaking different languages?

• 20

• 25

• 50

• 100

What is the relative frequency of students speaking Arabic?

• 32%

• 24%

• 10%

• 2%

What is the relative frequency of students speaking Spanish?

• 16%

• 12%

• 24%

• 48%