Mean, Median, Mode, Range

How do you calculate the mean of a data set?

• Put the numbers in order, then find the middle value.

• Look for the value that appears most often.

• Add the numbers together, then divide by how many numbers there are.

• Subtract the greatest value minus the least value.

How do you find the median of a data set?

• Put the numbers in order, then find the middle value.

• Look for the value that appears most often.

• Add the numbers together, then divide by how many numbers there are.

• Subtract the greatest value minus the least value.

How do you find the mode of a data set?

• Put the numbers in order, then find the middle value.

• Look for the value that appears most often.

• Add the numbers together, then divide by how many numbers there are.

• Subtract the greatest value minus the least value.

How do you find the range of a data set?

• Put the numbers in order, then find the middle value.

• Look for the value that appears most often.

• Add the numbers together, then divide by how many numbers there are.

• Subtract the greatest value minus the least value.

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

• 193

• 127

• 60

• 66

In order to find the median, the data must be sorted from least to greatest first.

• True
• False

Find the median of these numbers:
4,2,7,4,3

• 2
• 5
• 7
• 4

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

Lizzy had test scores of:   72, 94, 108, 60
What is the RANGE of her test scores?

• 12
• 72
• 48
• 98

What is the range?
8, 10, 60, 3, 5, 13, 12, 40, 8

• 55
• 8
• 57
• 17.7