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Advanced Algebra and Statistics Quiz Questions

Advanced Algebra and Statistics Quiz Questions

 
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1. What is the 5 number summary from the following set of data?  -8, -2, 0, 1, 5, 8, 11

2.  What does a correlation coefficient (r) of -.85 indicate about the direction and strength of a linear relationship between two variables?  

3. You are conducting a survey at your school, and randomly determine to survey every 10th student that walks into the cafeteria.  What type of sampling method did you use?

4. Solve for x:   7x2 + 3x - 4 = 0

5. Solve the linear system of equations:  -2x + 3y = 2

                                                                          -4x - y = -24

6. Solve for the center and radius of the circle:  x2 + y2 - 8x + 10y + 5 = 0

 

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Source: Rachel Bedo

College Algebra

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