Te reo Māori terms
click each term to open in Te AkaLearning objective overview
Master Teaching Guide coverage for this objective.
Resources
- Beta: Skills in Ex 33.04, pg 626 (teacher's note: a very small exercise in the textbook)
- Dr Austin Maths - Expected Values from Probability Tables Practice GridQuestions PDF · Answers
Terminology
- Expected outcome
- Expected value
- Prediction
- Average
- Estimate
- Random chance
Task goals
- State and apply the expected-value formula E = n x p to predict how many times an event will occur over n trials.
- Read a theoretical probability (as a fraction, decimal, or percentage) from a spinner, a probability table, or a stated rate, and use it to find an expected frequency.
- Combine expected frequencies for two or more outcomes (e.g. "Blue OR Yellow") by adding their probabilities before multiplying by n.
- Work backwards from a given expected count to find the number of trials n or the underlying probability p.
- Explain why an actual observed count commonly differs from its expected value, especially over a small number of trials, and that a larger number of trials tends to bring the experimental result closer to the theoretical expectation (Law of Large Numbers).
Key skills
- Expected value
- Expected outcome
- Probability
- Prediction
Quick stats
- 0 total questions
- 3 difficulty levels
- Answers included
For teachers
Need the fuller teaching notes for this objective? Open the Teacher guidance PDF.