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Probability @lhmaths: Lesley Hall 3 0 0 2 3 1 What is the probability of the arrow landing on a 3? 2 6 1 3 =

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Probability @lhmaths: Lesley Hall 3 0 0 2 3 1 What is the probability of the arrow landing on a 1? 1 6

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Probability @lhmaths: Lesley Hall Which arrow on the scale represents the probability of choosing a blue ball? A bag contains 6 red, 3 blue and 1 yellow ball. A BCDE C

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Probability @lhmaths: Lesley Hall Which arrow on the scale represents the probability of choosing a red ball? A bag contains 6 red, 3 blue and 1 yellow ball. A BCDE D

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Probability @lhmaths: Lesley Hall Which arrow on the scale represents the probability of choosing a pink ball? A bag contains 6 red, 3 blue and 1 yellow ball. A BCDE A

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Probability @lhmaths: Lesley Hall What is the probability that she will not jump? The probability that Julie will jump is 0.2. 0.8 1 – 0.2 = 0.8

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Probability @lhmaths: Lesley Hall A biased dice is rolled. The probability of it landing on each side is shown in the table. Number123456 Probability0.050.20.050.10.5 What is the probability of rolling a 4? 0.1 0.05 + 0.2 + 0.05 + 0.1 + 0.5 = 0.9 1 – 0.9 = 0.1

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Probability @lhmaths: Lesley Hall A biased dice is rolled. The probability of it landing on each side is shown in the table. Number123456 Probability0.050.20.050.1 0.5 How can you tell that the dice is biased? There is not an equal chance of each number being rolled.

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Probability @lhmaths: Lesley Hall This is a fair dice. If I roll it 600 times, how often would I expect it to land on the number 1. 100

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Probability @lhmaths: Lesley Hall Sam spun a spinner 100 times, and recorded which colour the spinner landed on. Here are his results. Colourbluegreenredyellow Frequency20282725 What is the relative frequency of the spinner landing on green? 28 100

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Probability @lhmaths: Lesley Hall Sam spun a spinner 100 times, and recorded which colour the spinner landed on. Here are his results. Colourbluegreenredyellow Frequency20282725 Draw the spinner.

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Understand and use the probability scale Find and justify theoretical probabilities.

Understand and use the probability scale Find and justify theoretical probabilities.

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