Measures of Center

What is the mode?

• Number that occurs the most
• The Average
• The difference between the highest and lowest values
• The Number in the middle

What is the mean?

• The number that occurs the most

• The number in the middle

• The difference between the highest and lowest values

• Balance Point. The Average, the point where the data is balanced

What is the median?

• The number in the middle in an ordered set of data

• The difference between the highest and lowest values

• The number that occurs the most

• The average

When finding the median what is the FIRST step?

• Mark off the lowest number
• Mark off the highest number
• Find the Middle
• Arrange the number from Least to Greatest

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

Find the mean of these numbers:
2, 57, 38, 42, 6

• 29
• 38
• 50
• 145

Use the table to find the mean

• 105
• 111
• 118
• 130

Find the Missing Value that would make the mean of the data set 25

• 22
• 23
• 24
• 26

Find the mean as a balance point

• 4
• 4.5
• 5
• 5.5

When data is categorical, it is best to use this measure of central tendency

• Mode

• Median

• Mean

• Range