Relative Frequency

Front

What is relative frequency?

Back

Relative frequency is the ratio of the number of times an event occurs to the total number of trials or observations. It is often expressed as a percentage.

Front

How do you calculate relative frequency?

Back

Relative frequency = (Number of times an event occurs) / (Total number of trials) * 100%.

Front

What is the total number of people surveyed if 70 people have an MP3 player and 100 is the total number of people?

Back

The total number of people surveyed is 100.

Front

If 11 sophomores like both burritos and pizza out of 50 surveyed, what is the relative frequency of sophomores who like both?

Back

Relative frequency = (11/50) * 100% = 22%.

Front

What does a relative frequency of 15% indicate?

Back

It indicates that 15% of the surveyed population purchased no food.

Front

If 10 out of 269 people surveyed purchased no food, what is the relative frequency?

Back

Relative frequency = (10/269) * 100% ≈ 3.72%.

Front

What is the significance of understanding relative frequency in statistics?

Back

Understanding relative frequency helps in interpreting data and making informed decisions based on the likelihood of events.

Front

How can relative frequency be used in real-life situations?

Back

Relative frequency can be used in various fields such as marketing, health studies, and sports analytics to analyze trends and make predictions.

Front

What is the difference between relative frequency and probability?

Back

Relative frequency is based on actual data from experiments or surveys, while probability is a theoretical measure of how likely an event is to occur.

Front

If 60% of surveyed people prefer chocolate ice cream, what does this tell us about the population?

Back

It suggests that a significant portion of the population has a preference for chocolate ice cream.