Probability

The probabilities of all mutually exclusive outcomes add up to

• 1

• 2

• 10

• 0

The probability of an event not happening is always 1 minus the probability that it will happen.

• True

• False

The probability of getting tails when you flip a coin is 50%. This means that if you flip 10 coins, you will always get 5 tails.

• True

• False

The probability of getting an even number on this fair spinner is:

A fair spinner has sections of four colours: green, red, blue and yellow.

The spinner landing on red and the spinner landing on green are mutually exclusive outcomes because:

• the spinner cannot land on both red and green

• red and green are not the only colours on the spinner

• red and green are equally likely

The probability of getting an odd number on this fair spinner is:

If the probability of winning a football match is 0.55 and the probability of losing is 0.2, what is the probability of drawing?

• 0.25

• 0.35

• 0.75

The probability that Rajesh is late for school is 23%. What is the probability that Rajesh is not late?

There are 100 parcels in a lucky-dip box.

What is the probability of selecting a toy car if there are 36 toy cars in the box?

The probability of not getting red on this fair spinner is: