Question

Need help with probability:
If three coins are flipped, what is the probability that there are more heads than tails?

Answer 1

*yawns* can't anyone come up with hard questions? i'm bored...

Answer 2

anyway
P (3 heads) = (1/2) ³ = 1/8
P (3 tails) = (1/2) ³ = 1/8

P (3 heads or 3 tails) = 1/8 + 1/8 - 1/64 = 15/64

Enjoy!

Answer 3

the book says the answer is 1/2

Answer 4

whatever. Use the book then

Answer 5

maybe you forgot P(2 heads and 1 tails)

Answer 6

hey, you're right :D

Answer 7

sorry about that. (After you told me about the book I was looking on this 1 site that said the answer I gave you and then it had 1/8ths, 1/4s... it was crazy!!!!!)

Answer 8

have a good day

Answer 9

Thanks

Answer 10

so its P(3 heads and 2heads)?

Answer 11

yes

Answer 12

1/8 * 1/4?