Scottish 2nd Level Bitesize

Home > Mathematics > Information handling > Probability

1.

Something that is unlikely to happen has a probability of between

0 and 0.5

0.5 and 1

1 and 2

2.

Something that is likely to happen has a probability of between

3.

What is the probability of rolling a 4 with a dice?

one sixth

one

zero

4.

What is the probability of getting 'heads' when you toss a coin?

1

0.5

0.2

5.

What is the probability of rolling an odd number with a dice?

one third

one half

6.

A coin is thrown three times. It lands on heads twice and tails once. What is the probability that the coin will land on tails with the next throw?

0

7.

A bag contains 7 buttons. 3 of them are green. What is the probability of picking a green button from the bag?

one seventh

two sevenths

three sevenths

8.

Something that has an even chance of happening has a probability of

100%

50%

0%

9.

A bag contains just 5 buttons, all of which are blue. What is the probability of picking a red button from the bag?

10.

A bag contains 4 white buttons. How many black buttons must be added so there is an even chance of picking a white button?

4

8