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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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Solve for x. 28 = 4(2x + 1) + 4 28 = 8x + 4 + 4 28 = 8x + 8 – 8 – 8 20 = 8x 8 8 2.5 = x Distribute Combine Subtract Divide.

Solve for x. 28 = 4(2x + 1) + 4 28 = 8x + 4 + 4 28 = 8x + 8 – 8 – 8 20 = 8x 8 8 2.5 = x Distribute Combine Subtract Divide.

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