Unit 8 Review: Trend Lines

Choose the graph with a trend line that best fits the data.

• graph 1

• graph 2

• graph 3

• graph 4

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
• 70
• 76

Given the table, write the equation in the slope-intercept form.

• y = 1/3x + 6
• y = 3x + 6
• y = 2x + 6
• y = 1/2x + 6

Find the Mean Absolute Deviation: 0, 5, 10

• 5

• 3

• 10

The data shows a

(a)   association

• nonlinear
• linear

Which best describes the scatter plot below?

• linear, negative correlation

• non-linear, negative correlation

• linear, positive correlation

• non-linear, positive correlation

There is ​ (a)   correlation between Math test results and height. As Math test results increase, height is ​ (b)   .

• no
• not affected
• positive
• increase(s)
• decrease(s)
• negative

• 50%, undefined, 0.4

• undefined, 0.4, 50%, undefined
  

Which of the following numbers is rational?

• 3.1456289...

Which of the following is an irrational number?