FREE Relative Frequency and Expected Frequency | Maths Codebreaker | Answers Included

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Calculate relative frequencies, expected counts and scaled predictions.

This FREE resource contains one complete A4 pupil worksheet with 22 questions and a matching answer page with workings, plus a product-family guide. Pupils solve the maths, match answers to letters in the code grid and decode the hidden words.

Difficulty: Level 5 of 10 within this range (1 is easiest; 10 is most demanding). These levels are a guide to relative challenge, not GCSE grades.

Three questions from this worksheet:
1. The probability of success in each trial is 1/3. In 42 trials, find the expected number of successes.
2. 30 successes occur in 600 trials. Find the relative frequency as a percentage.
3. The probability of success in each trial is 0.5; the expected number of successes is 13.5. Find the number of trials.

Use for focused practice, consolidation, homework or a lesson activity after teaching the method. Print the pupil page for learners and retain the answer page for checking. Follow the rounding and unit instructions on the sheet.

This resource belongs to a completed 100-topic Maths Codebreakers range. Halloween codebreaker resources are also available. A mixed-topic revision codebreaker range is coming soon. These other ranges are separate resources and are not included in this download.