Experimental probability (Edexcel GCSE Statistics): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What is the formula for experimental probability?
What is the formula for experimental probability?
Successful outcomes ÷ total trials
Why is increasing the number of trials important?
Why is increasing the number of trials important?
Reduces random fluctuations
What does a big difference between observed and expected outcomes suggest?
What does a big difference between observed and expected outcomes suggest?
For bias or unfairness
If a spinner is fair, how many times should side D land in 200 spins?
If a spinner is fair, how many times should side D land in 200 spins?
50
What does experiment show when a coin lands heads 34 times in 50 flips?
What does experiment show when a coin lands heads 34 times in 50 flips?
Coin might be biased to heads
Which factor improves confidence in experimental probability?
Which factor improves confidence in experimental probability?
Larger sample size
What does theoretical probability use to predict outcomes?
What does theoretical probability use to predict outcomes?
Mathematical calculations
What type of data is used to find experimental probability?
What type of data is used to find experimental probability?
Actual trial results
How does bias affect a spinner's results?
How does bias affect a spinner's results?
Big difference from predictions
What is the main benefit of repeating experiments many times?
What is the main benefit of repeating experiments many times?
More accurate estimates