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Three coins will be tossed in the air at the same time, what is the probability that all 3 will land on heads? Give your answer as a percent to the nearest one decimal place

Answer :

Number of coins are 3.

The sample space will be,

[tex]S=\lbrace HHH,HHT,HTH,HTT,THH,THT,TTH,\text{TTT}\rbrace[/tex]

The probablity of getting all three heads is,

[tex]\begin{gathered} P=\frac{1}{8}\times100 \\ =12.5 \end{gathered}[/tex]

Thus, the requried probablity is 12.5%.

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