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Forty-four percent of customers who visit a department store make a purchase. The probability, rounded to four decimal places, that in a random sample of 9 customers who will visit this department store, exactly 6 will make a purchase is:

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P(x = 6) = nCx *p^x (1-p)^n-x

9C6(.44)^6(1-.44)^n-x

9C6(.44)(.56)^3

= 0.1070

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