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ExtremeBDS [4]
3 years ago
8

A fair coin is tossed 4 times. what is the probability that at least 2 heads appear

Mathematics
1 answer:
shusha [124]3 years ago
6 0
HHHH TTTT HHHT HHTH HTHH THHH TTTH TTHT THTT HTTT
HHTT HTHT HTTH TTHH THTH THHT 

-  is the sample space.

 Total possible arrangements = 16.
Number  with at least 2 heads = 11

Required probability = 11/16


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