document.write( "Question 925225: Of the people who enter a large shopping mall, it has been found that 70 percent will make at least one purchase. For sample of n= 50 individuals, what is the probability that at least 40 people make one or more purchases each? \n" ); document.write( "

Algebra.Com's Answer #561378 by ewatrrr(24785) $\"\"$ $\"About$

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p(at least one purchase) = .70 , n = 50
\n" ); document.write( "P(x ≥ 40) = 1- P(x ≤ 39) = 1 - binomcdf(50, .70, 39) = 1 - .9211 = .0789 0r 7.89% \n" ); document.write( "

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