Question 1132460
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P(selling less than 2) = P(selling no one) + P(selling exactly 1) = 


                       = {{{(1-0.4)^18}}}          +  {{{C[18]^1*(1-0.4)^17*0.4^1}}} = {{{0.6^18}}} + {{{18*0.6^17*0.4}}} = 

                       = 0.000102          + 0.001219           = 0.001321 = 0.1321%.     <U>ANSWER</U>
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