ProbabilityHigh Exam FrequencyAQAEdexcelOCRWJEC
Expected Frequency
Revise Expected Frequency in Probability for GCSE Mathematics with 14 exam-style questions and 12 flashcards. This is a high-frequency exam topic, so students should expect to explain it clearly under timed conditions.
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Sample Flashcards
What is expected frequency?
The number of times we would expect an event to occur in a given number of trials, based on its theoretical probability.
What is relative frequency?
Relative frequency = frequency of event / total number of trials. It is also called experimental probability.
Sample Questions
Which formula correctly gives the expected frequency of an event?
A fair coin is flipped 50 times. The expected number of heads is 25. In the actual experiment, only 18 heads are recorded. Explain why the actual number of heads may differ from the expected number of heads.
14
exam-style questions
12
revision flashcards
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