An "unfair" coin has a heads side which weighs two and one-half times heavier than the tails side. If you toss this unfair coin 100 times, how many of those times would you expect to see heads? Explain why.

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- Nov 11th 2012, 09:59 AMCollegeBugStatistics- Unfair Coin Toss
An "unfair" coin has a heads side which weighs two and one-half times heavier than the tails side. If you toss this unfair coin 100 times, how many of those times would you expect to see heads? Explain why.

- Nov 11th 2012, 10:25 AMrichard1234Re: Statistics- Unfair Coin Toss
Assuming the weight condition implies, "the probability of obtaining a head is 2 1/2 times that of obtaining a tail," what is the probability of obtaining a head?

- Nov 11th 2012, 03:46 PMSorobanRe: Statistics- Unfair Coin Toss
Hello, CollegeBug!

Quote:

An "unfair" coin has a Heads side which weighs two-and-a-half times heavier than the Tails side.

If you toss this unfair coin 100 times, how many of those times would you expect to see Heads?

The Heads side is times heavier than the Tails side.

The Heads side will beof the time.*on the bottom*

Hence: .

We expect to see Heads: . times.