Data and Graphs

Expert⏱ 28 min

$A colourful bar chart on display showing data in tall and short bars$

is that we and . You how many each , or the each day for a .

A is a way to : , then through them with a to make a of 5. of 5 are to add up.

A tally chart of favourite fruit. Each group of five is one full gate, so the totals are easy to count.

A bar to . The of each bar you the . The you what is being and what is used. For , a bar up to 8 a of 8.

The same fruit data as a bar chart. The tallest bar — apple — is the most popular choice (the mode).

🔗 Match each type of graph or chart to what it is best for.

the key () on a . If one 2 , then 4 8 (4 × 2 = 8).

A pictogram of the same idea: each 🧒 stands for 2 children, so apple's 4 symbols mean 8 children.

a bar the top of a bar and to the . If the up in 2s (0, 2, 4, 6, 8) and a bar the 6, its is 7 only if there are — it on 6 or 8. the of each .

✍️ A tally shows four full groups of five plus three more strokes.

of 5 is , 3 more makes in .

The is the that most in a set. If 10 for , 6 for , and 4 for , the is (the most ). The is the between the and : 10 − 4 = 6.

The () is by all and by how many there are. The of 4, 6, and 8 is (4+6+8) ÷ 3 = 18 ÷ 3 = 6.

🔗 Match each word to what it means in data.

✍️ Answer these data questions.

In a set of with 3, 7, and 5, the is and the is .

When you to a , like "What is your pet?", you are a . the into a or makes it to see which was most and which was .

A line graph is best for change over time. Here the temperature (°C) rises to a peak on day 3, then falls. The sideways axis is the day number.

🧩 Put the steps of a data survey in the right order.

🗂️ Sort each term into the correct category.

Quiz time! 📝

Question 1 of 5

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How do you the of 4, 6, and 8?