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March 3, 2015

March 3, 2015

Posted by **Kate** on Sunday, November 29, 2009 at 6:15am.

- Math -
**Reiny**, Sunday, November 29, 2009 at 8:48am"getting at least one head in 3 flips"

implies you don't want all 3 tails,

Pr(all 3 tails) = 1/8

Pr(at least one head) = 1 - 1/8 = 7/8

so odds in favour of at least one head

= 7:1

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