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February 1, 2015

February 1, 2015

Posted by **Chris** on Thursday, October 21, 2010 at 2:58am.

registered voters. Assume the population is 20% democrats. Use a normal approximation

to estimate

(a) the probability the sample contains exactly 48 democrats, and

(b) the probability the sample contains more than 40 democrats.

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