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April 18, 2015

April 18, 2015

Posted by **Lala** on Wednesday, March 23, 2011 at 10:47pm.

Find the probability.

I thought It was 1/3 but I think that is wrong.

- Math -
**Reiny**, Wednesday, March 23, 2011 at 10:54pmprob(tail and even) = (1/2)(3/6) = (1/2)(1/2) = 1/4

proof:

cases:

t1 t2 t3 t4 t5 t6

h1 h2 h3 h4 h5 h6 ---- 12 of those

tail and even:

t2 t4 t6 ----- 3 of those

prob = 3/12 = 1/4

explain why you thought it was 1/3.

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