answer briefly
2007-03-03 17:27:42 · 7 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
1-(1/2)^5=31/32
2007-03-03 17:31:53 · answer #1 · answered by bruinfan 7 · 1⤊ 0⤋
James K has it right. Another way to describe it is what is the chance of hitting five tails in a row?
1/2 x 1/2 x 1/2 x 1/2 x 1/2 = 1/32
The chance of getting at least one head in five coint tosses is the same as NOT getting five tails in a row.
So 1 - 1/32 = 31/32, or a 96.875% chance of getting at least one head.
2007-03-04 01:38:40 · answer #2 · answered by knowmeansknow 4 · 1⤊ 0⤋
Possible outcomes are 2^5 or 32 outcomes
The only way to not be succesful is if all 5 coins are tails so the
P(at least one heads) = 31/32
2007-03-04 01:40:49 · answer #3 · answered by PZ 4 · 0⤊ 0⤋
31/32
2007-03-04 01:36:07 · answer #4 · answered by Anonymous · 1⤊ 0⤋
theres a 1 in 5 chance lol. :) easy to say and easy to think about.I hate math....except algebra...thats fun......so yea 1 in 5
2007-03-04 01:36:26 · answer #5 · answered by Anonymous · 0⤊ 2⤋
50-fifty
2007-03-04 01:45:25 · answer #6 · answered by Nick Y 2 · 0⤊ 2⤋
take (.5)^5 and you will get your answer
2007-03-04 01:31:44 · answer #7 · answered by cassieo13 3 · 0⤊ 2⤋