Data becomes easier to understand once it's drawn as a picture. Drag the sliders and watch a bar graph build itself, one bar at a time.
Try it: make one fruit's bar the tallest — that's the "mode," the most popular choice.
When counting things one by one, we often use tally marks — a quick way to keep count. Each mark is one count, and every 5th mark is drawn across the previous four.
This tally shows how many students chose cricket as their favourite sport:
|||| |||| ||
4 + 4 + 2 = 12 students
A pictograph uses pictures or symbols to represent data, where each picture stands for a fixed number of items (called the key).
If the key says 🍎 = 2 books, and a row shows 🍎🍎🍎, how many books does that represent?
3 × 2 = 6 books
A bar graph uses the height of bars to show quantity — taller bars mean bigger numbers. Each bar sits on its own category label.
If the Mango bar shows 8 and the Grapes bar shows 3, how many more students prefer mangoes?
8 − 3 = 5 more students
A bar graph shows: Apples 5, Mangoes 8, Bananas 6, Grapes 3, Oranges 4. Find the total number of students surveyed.
5 + 8 + 6 + 3 + 4 = 26 students
Using the same data, which fruit is the most popular?
Mangoes (8 votes — the tallest bar)
Tap a question to reveal its answer once you've tried it yourself.
Two 20-mark, 30-minute tests. Reveal answers question by question.