Probability: the probability of drawing a star card

In this Grade 7 lesson on Probability, you will practice solving problems like: "There are 8 cards. 2 have stars. What is the probability of drawing a star card?". Work through each problem carefully, use the hints if you need help, and check your answers. This builds your understanding of probability step by step.

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There are 8 cards. 2 have stars. What is the probability of drawing a star card?

1Read the problem carefully: "There are 8 cards. 2 have stars. What is the probability of drawing a star card?"

Problem 1 of 5

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Problem 1

There are 8 cards. 2 have stars. What is the probability of drawing a star card?

Problem 2 of 5

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Problem 2

A spinner has 20 equal sections and 8 are blue. What is the probability of landing on blue?

Problem 3 of 5

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Problem 3

There are 12 cards. 2 have stars. What is the probability of drawing a star card?

Problem 4 of 5

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Problem 4

A bag has 52 marbles and 13 are red. What is the probability of picking a red marble?

Problem 5 of 5

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Problem 5

There are 20 cards. 5 have stars. What is the probability of drawing a star card?

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🤯 Fun fact: 🤯 The most common starting digit in real-world numbers is 1 — that's a real law called Benford's Law.

🏆 Try this week: Watch the news once and find a graph. Tell someone what's wrong (or right) about it.

👨‍👩‍👧 At dinner: “What's something we could chart at home? Steps? Bedtime? Snacks?”

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