A histogram sorts data into number ranges (bins) and shows how many fall in each as a bar. So you need to be warm at counting/tallying, reading a bar's height, adding the counts, and telling which range a number belongs in.
These are words you'll need to already know to follow this lesson — not the new words the lesson teaches. Review each one, its meaning, and the example so the new lesson makes sense from the start.
Level 1 To find how many things there are, one at a time.
Example: Count the values 3, 5, 8, 1 to get 4 of them.
Level 1 How tall a bar is, which tells you the amount.
Example: A bar that reaches the line marked 4 has a bar height of 4.
Level 1 To put numbers together to find the total.
Example: Bars of 2, 3, 1 add up to 6.
Level 1 Falling inside two end numbers, not outside them.
Example: 14 is between 10 and 19.
These check the skills you'll need for this lesson — not the new lesson itself. Answer all 3, then press Show my path. No grade — it just suggests where to start.
1. Which numbers fall in the range 10–19?
2. A bar reaches up to the line marked 4. How many does that bar count?
3. Bars count 2, 3, and 1. What is the total?
Vocabulary previewed and basics checked. Time to start the lesson.
Start Lesson 8-6 →