Probability and Relative Frequency

A coin is thrown 30 times. It lands on tails 20 times. What is the relative frequency of the coin landing on tails?

A dice is rolled 50 times. It lands on six 37 times. What is the experimental probability of the dice landing on six?

Jessica wants to test if a coin is biased.

She throws the coin 24 times. See diagram for outcome. What is the relative frequency of the coin landing on heads?

A biased dice is rolled 30 times.

See the diagram for the outcome.

What is the experimental probability of rolling a 6?

Esme takes the bus to university 40 times during a term.

The relative frequency of the bus being late is 0.3.

How many times was the bus late?

• 14

• 12

• 16

• 28

Katie rolls a dice 100 times. See table for outcome. What is the relative frequency of throwing a SQUARE NUMBER?

Katie rolls the same dice 100 times. See table for outcome. What is the relative frequency of throwing a PRIME NUMBER?

Katie rolls the same dice 100 times. See table for outcome. What is the relative frequency of throwing a FACTOR OF 18?

A spinner lands on White, Black, Red and Orange. The relative frequencies after 300 spins are shown in table. How many times did the spinner land on White?

• 25

• 75

• 100

• 60

The same spinner lands on White, Black, Red and Orange. The relative frequencies after 300 spins are shown in table. How many times did the spinner land on Red?

• 45

• 75

• 120

• 60