Question 871970
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Hi
Three coins are tossed
(a) Determine the number of points in the sample space: {{{2*2*2}}} = 8
(b) Construct a tree diagram and list the sample space
HHH, HHT,HTH, THH, TTT, TTH, HTT, THT
(c) P( least two heads are tossed)= P(2) + P(3) =  3/8 + 1/8 = 4/8 = 1/2
(d) P(&#8804; four head is tossed) = 1 = P(0) + P(1) + P(2) + P(3)