Lesson P2
P2 Expected outcomes of multiple future experiments Quiz: AQA Maths, Unit 5
20 questions
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Lesson P2, Expected outcomes of multiple future experiments: 20 multiple choice questions for the AQA GCSE Maths (8300), Unit 5: Probability, written with Revision Ninja.
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The 20 questions
-
A fair coin is tossed 40 times. What is the expected number of heads?
- 80
- 20
- 10
- 40
-
What is the expected number of sixes from 60 rolls of a fair dice?
- 60
- 1/6
- 10
- 6
-
How do you calculate the expected number of times an outcome occurs in multiple trials?
- Trials ÷ probability
- Probability ÷ trials
- Probability + trials
- Probability × trials
-
A spinner has P(red) = 0.3. How many reds are expected in 200 spins?
- 30
- 67
- 60
- 200
-
What key assumption is required when using probability to calculate expected outcomes?
- Infinite trials
- Equal frequencies
- Increasing probability
- Constant probability
-
A fair dice is rolled 90 times. How many odd numbers are expected?
- 30
- 90
- 45
- 15
-
The probability of success in a trial is 0.15. How many successes are expected in 300 trials?
- 20
- 45
- 300
- 15
-
What does an expected outcome in probability represent?
- Most frequent result
- Guaranteed result
- Maximum outcome
- Long-run average
-
The chance of rain on any day is 0.4. How many rainy days are expected over 25 days?
- 10
- 0.4
- 6.25
- 15
-
A game has a win probability of 1/8. How many wins are expected in 96 plays?
- 8
- 12
- 96
- 88
-
Two independent experiments each have 50 trials of an event with probability 0.2. What is the total expected number of occurrences?
- 10
- 40
- 50
- 20
-
A fair dice is rolled 180 times. How many times is a 5 or 6 expected?
- 30
- 120
- 60
- 90
-
A factory has a defect probability of 0.02. How many defective items are expected in a batch of 4000?
- 80
- 8
- 800
- 200
-
A spinner has 5 equal sections, one labelled win. How many wins are expected in 75 spins?
- 25
- 5
- 15
- 75
-
Each of 40 students has a 0.25 chance of scoring 3 points. What is the total expected number of points?
- 30
- 12
- 75
- 10
-
An event has probability 0.7 in 20 trials. How many times is it expected not to occur?
- 6
- 0.3
- 20
- 14
-
An event has probability 0.36. How many trials give an expected count of 27?
- 97
- 27
- 75
- 9
-
A game costs 2 pounds to play, and a win has probability 0.1 and pays 15 pounds. What is the expected net gain per game?
- 0.50 pounds
- -0.50 pounds
- -1.50 pounds
- 1.50 pounds
-
An outcome has probability 0.25 and an expected count of 12. How many trials were there?
- 3
- 24
- 48
- 12
-
A raffle has 2000 tickets with a win probability of 0.0015 for each. How many winners are expected?
- 3
- 30
- 1.5
- 15
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