Idea 22of 22Builds onMode, median and mean on a line plotUse the mean for a fair share
What each measure tells you
What does each of the three numbers say about the data?
Today you'll discover
- what the mode says
- what the median says
- what the mean says
Think firstBooks read: mode 3, median 3, mean 4
The mean is 4 books. What does that tell you?
Decide first, then press Next. Read each marker's label.
A line plot of books read by five readers: 2, 3, 3, 4 and 8, with the mode box and median line at 3 and the mean triangle at 4. Then each is shown on its own: the mode the tallest column, the median the 3rd of 5 dots, the mean 20 ÷ 5 = 4. The last step shows six weekly allowances.
See the whole ideathe big idea and the key word, in one place
The big idea
The mode is the most common value, the median the middle, the mean the equal share.
Say it in wordsMode: most of the time, it was 3. Median: half were 3 or less. Mean: shared equally, each would have 4.
Key word
- measure of centre
- one number that describes the middle of a data set: the mode, the median or the mean
Ready to use it?
- Explain what the mean, median or mode says about a data set.