what does this mean
and probabilities are where two things occur simultaneously
what does this mean
or probabilities are where one of two probabilities occur, or they both do
what is the formula for this
what is the formula for this
what is the formula to test for independence
what do all the probabilities add up to
1
P(A)
P(B)
P(A’)
Anything outside of A
P(B’)
anything outside of B
P(AUB)
A or B or both
P(AnB)
A and B
how to work out P(A’)
1 - P(A)
or anything that is not P(A)