CEC Year 10 - Statistics - Cycle 2 - Foundation

Use one word from the list to complete each sentence below.

"The outcome that the marble is red is ........ "

• likely

• evens

• impossible

• unlikely

• certain

Laura picks at random one of these cards.

What is the probability that this card has a 2 or a 4 on it? (There is more than one correct option.  Select all appropriate options)

•  $\frac{7}{10}$  

• 7 : 3

• 70%

• 0.7

• I don't know

Two fair six sided dice are rolled. The numbers on the two dice are added together to give a score. The table shows all possible scores.

What is the probability of scoring an odd number?

• $\frac{1}{2}$

• Unlikely

• 18 : 36

• Likely

• I don't know

Using the rules, what could the missing number be?

• 16

• 8

• 9

• 12

• I don't know

Matt and Thomas each take a penalty.

The probability that Matt scores is 0.6

The probability that Thomas scores is 0.7

What is the probability that both boys miss?

• 0.12

• 0.7

• 0.6

• 1.0

• I don't know

Megan and Rosie sit their driving tests. The probability that Megan passes the test is 0.8

The probability the Rosie fails the test is 0.3

What is the probability that both women pass?

• 0.56

• 0.15

• 1.5

• 0.24

• I don't know

There are 10 chocolates in a bag. Four are milk chocolate and six are dark chocolate. Two chocolates are taken out at random without replacement.

What is the probability of choosing 2 dark chocolates?

• $\frac{1}{3}$

• $\frac{12}{90}$

• $\frac{11}{19}$

• $\frac{11}{18}$

• I don't know

There are 12 sweets in a bag. 7 are lemon and 5 are orange. Two sweets are taken out at random without replacement.

Work out the probability that the two sweets are different flavours.

• $\frac{35}{132}$

• $\frac{12}{24}$

• $\frac{35}{121}$

• $\frac{28}{144}$

• I don't know

Which average can be described as, 'the middle value in an ordered list"?

• median

• mean

• mode

• range

• I don't know

Which average can be described as, 'the value that occurs most often'?

• mode

• median

• mean

• range

• I don't know