A-Level Maths OCR A H240

Understand and be able to use mutually exclusive and independent events when calculating probabilities.

*Includes understanding and being able to use the notation:

$P(A)$, $P(A')$, $P(X = 2)$, $P(X = x)$.

Includes linking their knowledge of probability to probability distributions.*

Be able to use appropriate diagrams to assist in the calculation of probabilities.

Includes tree diagrams, sample space diagrams, Venn diagrams.

Understand and be able to use conditional probability, including the use of tree diagrams, Venn diagrams and two-way tables.

iIncludes understanding and being able to use the notations:

$A∩B$, $A∪B$, $A|B$.

Includes understanding and being able to use the formulae:

$P(A∩B) = P(A) × P(B|A)$, $P(A∪B) = P(A) + P(B) - P(A∩B)$.

Understand the concept of conditional probability, and calculate it from first principles in given contexts.

*Includes understanding and being able to use the conditional probability formula:

$P(A|B) = \dfrac{P(A∩B)}{P(B)}$.

Use of this formula to find $P(A|B)$ from $P(B|A)$ is excluded.*

Be able to model with probability, including critiquing assumptions made and the likely effect of more realistic assumptions.