wikiHow Calculating Relative Frequency Practice Problems To solve these problems, apply the formula: Relative Frequency = f / N, where "f" represents the frequency and "N" is the total number of data points. For some problems, the relative frequency may need to be converted to a percentage by multiplying by 100. 1. In a survey of 100 people, 30 preferred apples. Calculate the relative frequency of people who preferred apples. 2. In a class of 25 students, 10 received an A grade. Find the relative frequency of students who received an A. 3. In a data set of 50 measurements, 15 were greater than 10. Calculate the relative frequency of measurements greater than 10. 4. A survey of 200 respondents showed that 60% of them owned a smartphone. Find the relative frequency of smartphone owners. 5. In a sample of 80 voters, 48 voted for Candidate A. Calculate the relative frequency of votes for Candidate A. 6. Out of 150 customers, 25 purchased item X. Determine the relative frequency of customers who purchased item X. 7. In a group of 50 people, 20 were born in May. Find the relative frequency of people born in May. 8. In a collection of 100 books, 30 were classified as non-fiction. Calculate the relative frequency of non-fiction books. 9. Out of 60 cars on the road, 12 were red. Determine the relative frequency of red cars. 10. In a survey of 120 participants, 80% said they preferred tea over coffee. Calculate the relative frequency of tea preference. 11. In a class of 30 students, 6 play a musical instrument. Find the relative frequency of students who play a musical instrument. 12. Out of 90 registered voters, 45 voted in the recent election. Determine the relative frequency of voters who participated. 13. In a sample of 200 observations, 25% exceeded a certain threshold. Calculate the relative frequency of observations exceeding the threshold. 14. In a group of 70 employees, 35 had more than 5 years of experience. Find the relative frequency of employees with more than 5 years of experience. 15. Out of 80 survey respondents, 20 reported being vegetarians. Determine the relative frequency of vegetarians. 16. In a data set of 150 measurements, 90 were less than 50. Calculate the relative frequency of measurements less than 50. 17. In a sample of 100 shoppers, 70% used a credit card for their purchase. Find the relative frequency of credit card users. 18. Out of 120 students, 36 were enrolled in the science program. Determine the relative frequency of students in the science program. 19. In a survey of 80 participants, 40% indicated they exercise regularly. Calculate the relative frequency of regular exercisers. 20. In a class of 50 students, 10 scored above 90 on the test. Find the relative frequency of students with scores above 90. Page