Measures of Center

Measures of Center

Poll

How confident do you feel about this topic to start?

• I'm a champ. Lemme teach it

• I got this.

• uhm.. maybe?

• Say what?

Fill in the Blanks

If I score an 88, 90, and 87 on my tests, what is my average?(round to the nearest tenth)

Multiple Choice

Jordan made test scores of 75, 86, 92, 79, and 88. What was her median test score?

• 78

• 84

• 86

• 92

Multiple Choice

The average temperatures for a city in the southern US over a 6 day period are listed below:

72 75 86 75 75 79

If the 7th day of this week has an unusually high temperature of 92, which of the measures will be affected?

• the mean temperature for the week

• the median temperature for the week

• the mode of the temperature for the week

• both the mean and the median temperature for the week

Multiple Choice

Example 1 Stephanie drove 30 mph for 1 hour, then 50 mph for the next 3 hours. What was her average speed for the entire 4 hours?

• 35 mph

• 40 mph

• 45 mph

• 48 mph

Fill in the Blanks

John averaged 2 errors per page in the first 10 pages of his term paper and 3 errors per page in the last 5 pages. What was the average number of errors per page in the entire term paper?

Multiple Choice

The average of 4 numbers is 20. If the average of 3 of the numbers is 18, what is the 4th number?

• 18

• 19

• 20

• 26

Multiple Choice

What is the average of 2K+1, 5K+8, and 2K+3?

• 3K

• 3K+4

• 4K+1

• 6K+2

Open Ended

What did you think about today's lesson? Don't forget to do your practice!