understand the notion of a conditional probability and recognise and use language that indicates conditionality
use the notation 𝑃(𝐴|𝐵) and the formula 𝑃(𝐴∩𝐵) =𝑃(𝐴|𝐵)𝑃(𝐵)
understand the notion of independence of an event A from an event B, as defined by P(A|B)=P(A)
establish and use the formula 𝑃(𝐴∩𝐵) = 𝑃(A)𝑃(𝐵) for independent events 𝐴 and 𝐵, and recognise the symmetry of independence
