Review — Difficulty 3/10

Probability · Random variables

Review skills for this standard. Write answers where shown.

Together with a parent

1. P(A) = 0.6000000000000001, P(B) = 0.7000000000000001. If independent, P(A∩B) = ___ 2. Binomial(n=11, p=0.5): P(X = 8) = ___ 3. E[X] for X with values {7, 9, 11} and equal probability ___

Written review

1. P(A) = 0.7, P(B) = 0.8. If independent, P(A∩B) = ___ 2. Binomial(n=13, p=0.5): P(X = 10) = ___ 3. E[X] for X with values {9, 11, 13} and equal probability ___ 4. Variance of a fair die roll: ___ 5. Conditional: P(A|B) when P(A∩B) = 0.26 ___ 6. Identify the distribution and parameters in context.

_See printable PDF for diagram._

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Skills checklist

• [ ] Computes probabilities from models
• [ ] Finds expectation and variance

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