document.write( "Question 199933: Sixty percent of the customers of a fast food chain order a hamburger, french fries and a drink. If a random sample of 15 cash register receipts is selected, what is the probability that 10 or more will show that the above three food items were ordered? \n" ); document.write( "
Algebra.Com's Answer #150362 by edjones(8007)![]() ![]() You can put this solution on YOUR website! Let a=.6 and b=.4 \n" ); document.write( "Take the 1st six terms of (a+b)^15 which are \n" ); document.write( "find the coefficients by the combination formula nCr on your calculator (easiest). \n" ); document.write( "a^15=.0005 \n" ); document.write( "15a^14b=.0047 \n" ); document.write( "105a^13b^2=.0219 \n" ); document.write( "455a^12b^3=.0634 \n" ); document.write( "1365a^11b^4=.1268 \n" ); document.write( "3003a^10b^5=.1859 \n" ); document.write( "Sum of the above numbers .4032 answers. \n" ); document.write( ". \n" ); document.write( "Ed \n" ); document.write( " |