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**Probability How likely is an event to occur?**

What are the chances of that happening??!!

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**Mathematical Vocabulary**

We can describe the probability or chance of an event happening by saying: It is IMPOSSIBLE. It is UNLIKELY. It is LIKELY. It is CERTAIN.

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**What is the probability of the following events happening?**

You will have your 30th birthday tomorrow. Your family will win the lottery this weekend. You will watch television tonight. You will eat some food today.

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**Can you think of any events which are equally likely to happen?**

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How about…..? If you toss a coin you have an equal chance of getting a head or a tail. If a baby is born it has an equal chance of being a boy or a girl. If you roll a dice you have an equal chance of getting the number 1, 2, 3, 4, 5 or 6!

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**Investigation Next lesson we will investigate probability further!!**

We test whether we have an equal number of heads and tails when we toss a coin. We will test whether we get an equal number of 1s, 2s, 3s, 4, 5s and 6s when we roll a dice.

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Probability. Probability is the chance that something will occur or happen. Probabilities are written as fractions, decimals, or percents. Probability.

Probability. Probability is the chance that something will occur or happen. Probabilities are written as fractions, decimals, or percents. Probability.

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