if three coins are tossed simultaneously, then find the probbilitiy of getting least tow heads
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total outcome =8
P(of getting at least 2heads) =3/8
P(of getting at least 2heads) =3/8
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S: {HHH, HHT, HTH, THH, HTT, THT, TTH, TTT}
at least two heads means that we shall get a minimum of two heads, but it can be possible of getting three heads too...
so favourable outcomes are: {HHH, HHT, HTH, THH}
n(total)=8 n(favourable)=4
so, P(atleast 2 heads)=
=
at least two heads means that we shall get a minimum of two heads, but it can be possible of getting three heads too...
so favourable outcomes are: {HHH, HHT, HTH, THH}
n(total)=8 n(favourable)=4
so, P(atleast 2 heads)=
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