Measures of Center and Dot Plots

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
• The Average

What is the median?

• The number in the middle
• 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

Find the mean of Violet's test scores.

95, 90, 100, 90, 85, 95, 75

• 105

• 92

• 90

• 95

Find the median number of fires Jack started in the last 8 days.

22, 53, 25, 27, 16, 65, 42, 70

• 34.5

• 42

• 27

• 40.5

The data shows the number of goals Dash has scored. Find the mode(s).

4, 4, 2, 3, 1, 0, 7, 2, 5, 6

• 4

• 2, 4, and 6

• 6

• 4 and 2

Each dot represents 1 day. How many days were recorded?

• 9
• 21
• 20
• 105