7.SP.3

7.SP.3

Measures of Centers

Multiple Choice

What is the definition of the mean?

• The average

• The middle number

• The difference between the highest and lowest numbers

• The number that occurs the most

Multiple Choice

To find the average of a set of numbers, add up all the items and divide by...

• 2

• The minimum

• The maximum

• The number of items

What is the mean number of goals scored?

Multiple Choice

Find the mean giraffe heights.

• 15

• 15.5

• 15.7

• 28.2

Multiple Choice

In the first round of the playoffs, Ben Simmons points (in each game) was listed below. How many points per game is he averaging in the playoffs?

17 , 24 , 19 , 17 , 14

• 16.8

• 17.8

• 17

• 18.2

Beware!

• If you end up with one number in the middle, great!

• If you end up with two numbers in the middle, you find the mean of those two numbers AND the result is your median.

Multiple Choice

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

• True

• False

Multiple Choice

Find the median.

12, 5, 9, 18, 22, 25, 5

• 9

• 8

• 12

• 18

How data can be presented

Tables, Charts, and Graphs

Interpreting Data

What do you notice about the Dot Plot?

Open Ended

(Part 1) Describe the spread of the data on the dot plot as well as the center.

(Part 2) What conclusion can you make by looking at the dot plot?

Analyzing Dot Plots

What are the means?

What are the medians?

How are they spread out?