1. Please have the homework out on your desk. Grab a packet from the front and wait for instructions.

2. Math 8 Review Sampling, Measures of Central Tendency & Scatter Plots

3. Which color is represents the Mode? Why? Car Colors OwnersOwners

4. What Type of Sampling is it? Convenience Systematic VoluntaryRandom Nick will survey the students that sit at his lunch table.

5. You want to make your parents believe you are doing well in all of your classes, should you tell them the mean, median or mode of your grades? Report Card Science71 Math97 Athletics94 LA75 History85 Spanish65

6. What Type of Sampling is it? Convenience Systematic VoluntaryRandom Mr. Harold counts off his students as they enter the room, 1—2—3. All of the 3s will be surveyed.

7. Positive, negative or no trend? T/F As TV time decreases, so does the math score. 2. More TV time causes a higher math score. TVMinutesTVMinutes

8. Is the trend positive, negative or no trend? T/F? As temperature increases, ice cream sales increase. Temperature IceCreamIceCream

9. What Type of Sampling is it? Convenience Systematic VoluntaryRandom Students are asked to go online and complete a serve in their free time.

10. A teacher asked her class, “How many pets do you have?” She recorded… number number of petsof students 0 1 1 6 2 1 3 4 5 5 2 Which measure of data should she use if she wants to show students do not have many pets?

11. What Type of Sampling is it? Convenience Systematic VoluntaryRandom Susan and George will roll a dice to choose numbers assigned to students and they will take the survey.