document.write( "Question 881936: The number of books that she will be able to find used is a binomial random variable X with n = 10 and p = 0.30. In other words, the probability that she will find any given book used is 0.30, and is independent from one book to the next. What is the probability that she will find more than 2 used books? \n" ); document.write( "

Algebra.Com's Answer #532619 by ewatrrr(24785) $\"\"$ $\"About$

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p = .30, n = 10
\n" ); document.write( "P(x ≥ 2) = 1 - P(x ≤ 1) = 1 - binomcdf(10, .30, 1) = 1 - .1493 = .8507 0r 85.07% chance \n" ); document.write( "

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