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Probability. How likely is an event to occur? What are the chances of that happening??!!. 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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Probability How likely is an event to occur? What are the chances of that happening??!!
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.
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.
Can you think of any events which are equally likely to happen?
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!
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.