SOLUTION: please help me solve this question; a coin is tossed six(6) times, what is the probability of obtaining (a) four(4) heads (b) five(5) heads (c) six(6) heads and (d) getting four(4)

Algebra ->  Probability-and-statistics -> SOLUTION: please help me solve this question; a coin is tossed six(6) times, what is the probability of obtaining (a) four(4) heads (b) five(5) heads (c) six(6) heads and (d) getting four(4)      Log On


   

Question 1025970: please help me solve this question; a coin is tossed six(6) times, what is the probability of obtaining (a) four(4) heads (b) five(5) heads (c) six(6) heads and (d) getting four(4) or more heads? thank you
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
P%28X%29=C%286%2CX%29%281%2F2%29%5EX%2A%281%2F2%29%5E%286-X%29
P%28X%29=C%286%2CX%29%281%2F2%29%5E6
P%28X%29=C%286%2CX%29%2F64
.
.
.
a.)P%284%29=15%2F64
b.)P%285%29=6%2F64=3%2F32
c.)P%286%29=1%2F64
d.)P%28X%3E=4%29=P%284%29%2BP%285%29%2BP%286%29=%2815%2B6%2B1%29%2F64=22%2F64=11%2F32