Relative Frequency to Make Predictions

Calculate the relative frequency if the number of times an event occurred is 5 and the total number of trials is 20.

• 0.35

• 0.25

• 0.45

• 0.15

If the number of successful outcomes is 12 and the total number of outcomes is 30, what is the relative frequency?

• 0.4

• 0.6

• 0.2

• 0.8

A survey shows that out of 50 people, 20 prefer tea. Calculate the relative frequency of people who prefer tea.

• 0.6

• 0.4

• 0.3

• 0.5

In a class of 25 students, 10 students play basketball. What is the relative frequency of students who play basketball?

• 0.6

• 0.2

• 0.8

• 0.4

If a dice is rolled 30 times and the number 4 comes up 6 times, what is the relative frequency of rolling a 4?

• 0.6 or 60%

• 0.4 or 40%

• 0.8 or 80%

• 0.2 or 20%

Out of 80 students, 25 students like to read books. Calculate the relative frequency of students who like to read books.

• 0.4

• 0.3125

• 0.4875

• 0.25

If a spinner is spun 50 times and lands on red 15 times, what is the relative frequency of landing on red?

• 0.2 or 20%

• 0.25 or 25%

• 0.3 or 30%

• 0.5 or 50%

In a group of 40 people, 12 people have pets. Calculate the relative frequency of people who have pets.

• 0.5

• 0.3

• 0.2

• 0.8

A survey of 100 people shows that 30 people prefer watching movies. Calculate the relative frequency of people who prefer watching movies.

• 0.2

• 0.5

• 0.3

• 0.8

If a coin is flipped 25 times and lands on heads 10 times, what is the relative frequency of landing on heads?

• 0.6 or 60%

• 0.2 or 20%

• 0.8 or 80%

• 0.4 or 40%