Here's you and a bunch of other Whyvillians along with their heights.
Drag them around until they are in order from shortest to tallest.
When you are finished, click the button:
Where are you?
Where are you?
Grouping
Now that you've ordered everyone, it is easy to make a graph of their heights.
Drag and drop each person into the correct funnel to group everyone by height.
1.
How many people are tall on the graph?
2.
How many total people are at your height OR shorter on the graph? Remember to include yourself!
Histogram
Congratulations! The graph you just constructed is called a histogram.
Here's the same graph you just made, without the heads on it.
You can use this to easily compute your percentile height ranking.
1. Click on the bar where your own head belongs. Remember, you are tall.
2. How many people are tall on the graph ?
3. How many total people are at your height OR shorter on the graph?
4. How many total people are represented on the graph?
5. Here's how to calculate your percentile height in this group:
Multiply the number of people who are your height or shorter by 100.
Input your answer here:
Finally, divide your answer by the total number of people on the graph, and input your answer here:
Explore
Great! We say that your height puts you in the th percentile
among the people in this group.
Now, let's explore this a bit more. Drag the blue slider along the graph to see how the percentile
changes at different positions on the graph.
out of
( or %)
of the people are at or below
in height.
That means:
people who are
tall are in the
percentile for height.
1.
If you drag the slider until the blue area covers up to the bar,
how many heads does it cover?
2.
Drag the slider until the blue area covers up % of the heads.
What height represents the th percentile in this group?
How many people are tall on the graph?