View Full Version : A cuteish real problem
Suppose one starts flipping a fair coin. On average how long does it take to flip a head?
Consider this part a to a question which we will see has interesting ramafications..
Showing clever work gets extra credit(-:
How high are the flips? And are we assuming planet earth at sea level?
Okay, here's one. What is Aibohphobia the fear of?
Tommy
a man, a plan, a canal, Panama. Scary.
Fear of having to do kickboxing aerobics.
"What is Aibohphobia the fear of?"
the fear of questions about flipping coins?
my thinking is that the answer would be
the sum (1/2 + 2/4 + 3/8 + 4/16 + 5/32 + 6/64 ......)= avg number of flips to get a head
That's what I got too. I'm guessing that it converges on 2.
I'll give you a hint:
Average flips to get heads = Average flips to get tails.
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