CAIE IGCSE Mathematics Extended E8.1 Introduction to Probability Topic Practice

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Covered syllabus points

E8.1.1 Understand and use the probability scale from 0 to 1.E8.1.2 Understand and use probability notation.E8.1.3 Calculate the probability of a single event.E8.1.4 Understand that the probability of an event not occurring = 1 – the

Question 1

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Table for Question 1 — CAIE IGCSE Mathematics Extended

The table shows information about the heights of 80 children.

One of these children is chosen at random.

Calculate the probability that they have a height of 1.4 m or less.

Question 2

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On any day, the probability that the weather will be sunny is 0.7 .

Find the probability that on any day the weather will not be sunny.

Question 3

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Jacinda plays a game with her friend.
She can win, lose or draw the game.
The probability that she wins the game is 0.28 .

Jacinda is twice as likely to draw the game as to lose the game.

Work out the probability that she loses the game.

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