Relative Frequency Analysis
A Grade 12 Math worksheet focusing on understanding, calculating, and interpreting relative frequencies from various data sets.
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Relative Frequency Analysis
Name:
Date:
Score:
Read each question carefully and provide your answers in the spaces provided. Show all your work for calculations.
1. Define relative frequency in your own words and explain how it differs from absolute frequency.
A survey asked 200 students about their favorite color. The results were: Blue (60), Red (45), Green (35), Yellow (30), Other (30).
2. The relative frequency of students who prefer Blue is .
3. The relative frequency of students who prefer Green is .
4. A biased coin is tossed 100 times. It lands on heads 70 times. What is the relative frequency of landing on tails?
0.7
0.3
70
30
The bar graph below shows the number of cars of different colors in a parking lot.
5. What is the total number of cars in the parking lot?
6. Calculate the relative frequency of red cars.
7. Calculate the relative frequency of white cars.
8. A factory inspects 500 products and finds 25 defective items. What is the relative frequency of defective items? Express your answer as a percentage.
9. The sum of all relative frequencies for a given data set must always be equal to 1 (or 100%).
True
False
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