Question 1144118
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The probability  P = {{{C[12]^7*0.6^7*(1-0.6)^(12-7)}}} = {{{((12*11*10*9*8)/(1*2*3*4*5))*0.6^7*0.4^5}}} = 0.2270 = 22.70%.    <U>ANSWER</U>
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