TERMS AND PHRASES FROM PROBABILITY (top row of table below) To find "sizes", you may need COUNTING PRACTICE

Experiment	Sample Space S	Size of Sample Space n(S)	Event in English	Event as a Set E	Size of Event n(E)	Probability of Event
Single Coin flip	S1 = { H,T }	2	One head appears	E1 = { H }	1	P(E1) = n(E1) n(S1) = 1 2
Double Coin flip	S2 = HH, HT, TH, TT	4	At least one head appears	E2 = HH, HT, TH	3	P(E2) = n(E2) n(S2) = 3 4
Triple Coin flip	S3 = HHH, HHT, HTH, HTT, THH, THT, TTH, TTT	8	At LEAST two heads appear	E3 = HHH, HHT, HTH, THH	4	P(E3) = n(E3) n(S3) = 4 8
			At MOST two heads appear	F3 = HHT, HTH, HTT, THH, THT, TTH, TTT	7	P(F3) = n(F3) n(S3) = 7 8
			The coins do not all show the same face	G3 = HHT, HTH, HTT, THH, THT, TTH	6	P(G3) = n(G3) n(S3) = 6 8