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when flipping 4 coins, what is the probability of "more heads than tails"?
 one year ago
 one year ago
when flipping 4 coins, what is the probability of "more heads than tails"?
 one year ago
 one year ago

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yashar806Best ResponseYou've already chosen the best response.0
satellite73 help me after this one
 one year ago

satellite73Best ResponseYou've already chosen the best response.0
that means either 3 heads and one tail or 4 heads the probability of all the possibilities can be seen by looking at the fourth row of pascal's triangle \[1,4,6,4,1\] the denominator of each of the probabilities is \(2^4=16\) so the probabilities are \[\frac{1}{16}, \frac{4}{16},\frac{6}{16},\frac{4}{16}, \frac{1}{16}\] for no heads, one head, two heads, three heads, four heads respectively
 one year ago

satellite73Best ResponseYou've already chosen the best response.0
more heads than tails means add up the last two, i.e. \[\frac{4}{16}+\frac{1}{16}\]
 one year ago

mveslingBest ResponseYou've already chosen the best response.0
ok i get it now, thx!
 one year ago
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