Measures of Central Tendency Lesson

Dr. Dre is a dentist. He needs to report on the average number of cavities that his patients have.
1,0,1,5,6,3,4

• 3.33
• 2.85
• 3
• 3.5

At Donald's Donuts the number of donut holes in a bag can vary. Help Donald find the mode.
12,10,10,10,13,12,11,13,10

• 13
• 12
• 11
• 10

Roger bowled 7 games last weekend. His scores are: 155, 165, 138, 172, 127, 193, 142. What is the range of Roger's scores?

• 193
• 127
• 60
• 66

Find the mean of these numbers:
5,11,2,12,4,2

• 4.1
• 6
• 4.5
• 4

Find the mean of the following cell phone usage per month: 445, 516, 618, 575, 288

• 488.4
• 484
• 488
• 487.5

Find the median, mode and range: 
3, 5, 7, 9, 11, 8, 3

• median:9  mode:3  range:8
• median:6  mode:3  range:7
• median:7  mode:3 range:8

If there is an even number of data in the data set how do you find the median?

• order the data and find the middle value
• order the data add the 2 middle values and divide by 2

Fine the mean, median, and mode/s of the data.
2, 8, 10, 12, 56, 9, 5, 2, 4

• mean: 12  median: 10  mode:2
• mean: 12  median: 8 mode:2
• mean:14 median: 10  mode:2

The range is 

• highest minus lowest
• the one that occurs the most
• the average

Another word for mean is 

• average
• mode
• Mrs. Childs
• range