Grade C Statistics questions. Probability

Question 1

The probability of picking a heart from a pack of cards is…?

Answer 1

1/4

Question 2

The probability of getting “tails” when you flip a coin is…

Answer 2

1/2

Question 3

How many ways are there to arrange three different objects?

Answer 3

6

Question 4

What is the probability of choosing a red ball from a bag containing 5 red, 3 blue and 2 yellow balls?

Answer 4

1/2

Question 5

If the probability of catching a bus is 2/3, what is the probability of not catching the bus?

Answer 5

1/3

Question 6

What is the chance of it raining next year?

Answer 6

1

Question 7

What is the probability of two seeds germinating, if the probability of each doing so is 3/5?

Answer 7

9/25

Question 8

What is the probability of Ben forgetting his lunch, if he remembers it 4/5 of the time?

Answer 8

1/5

Question 9

A box of chocolates contains 15 toffees, 8 mints and 17 soft centres. What is the probability of choosing a mint?

Answer 9

1/5

Question 10

In a multipack of crisps there are 5 salt and vinegar bags, 4 cheese and onion and 3 bags of plain. What is the probability of not choosing a bag of plain crisps?

Answer 10

3/4