Question 287951
you show the child ten wooden blocks. 
The blocks are identical except that eight are green and two are blue. 
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You randomly arrange the blocks in a row and ask him to pick out a green block. After a block is picked, you replace it and randomize the order of the blocks once more. Then you again ask him to pick out a green block. This procedure is repeated until the child has made 12 selections.
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 If he really can't discriminate green from blue, what is the probability he will pick a green block at least 9 times?
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Binomial Problem:
P(pick green) = 0.8
P(pick blue) = 0.2
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P(10 green out of 10 picks) = 0.8^10 = 0.1074
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Cheers,
Stan H.