probablity Flashcards
1
Q
if A happens and B happens
A
P(A and B)=P(A) x P(B)
2
Q
if A or B happens
A
P(A or B)=P(A)+P(B)
3
Q
probablity
A
P=number of successes/number of trials
4
Q
if A is an Event, and A is the event that does not happen then
A
P(A)=1-P(A)