Relative Frequency Example

CoinFrequencyProbability
Penny11/6 ≈ .167
Nickel22/6 ≈ .33
Dime33/6 ≈ .5

Use the following formula to find relative frequency:

f / n

In this example, Lynn has one penny, two nickels, and three dimes in her pocket. If she chooses one coin at random from her pocket, what is the probability that she will choose a nickel?

If mentally calculating is too difficult, make a chart as shown here. The probability of choosing a nickel is approximately .33, or 33%.