Mean, Variation, Mode Visualization

Open Ended

What is an average (mean)?

Mean or Average

a calculated "central" value of a set of numbers.

To calculate it:
• add up all the numbers,
• then divide by how many numbers there are.

We can visualize mean on a graph

When We think of mean on a graph, we again think of a centerpoint in the data. We visualize where the graph would "balance"

Multiple Choice

Which value BEST represents the mean of the data?

• 4

• 2

• 1

• 5

Multiple Choice

Which value BEST estimated the mean of the data set

• 6

• 5

• 3

• 1

MODE

Mode is the thing that happens the most. In a bar graph or histogram we can find the mode by finding the bar that is the tallest.

Multiple Choice

What is the Mode of the graph?

• 1

• 4

• 3

• 5

Multiple Select

What is the mode of the graph? (select all that apply)

• 1

• 6

• 3

• 5

Range or Variation

Range and Variation are the same thing. Variation is the spread of the data. We take the largest value and subtract the smallest to see how many values the data covers

Multiple Choice

What is the range of the data?

• 7

• 6

• 5

• 8

Multiple Choice

Which graph has the most variation? (largest range)

​Mean, Mode, Variation

Now that we know the vocabulary we can compare data visually