document.write( "Question 317637: We want to form a license plate using 4 letters (A-Z) followed by 3 numbers (0-9). Both may be used more then once. A license plate is chosen randomly. What is the probability that the letter A is not used? \n" ); document.write( "
Algebra.Com's Answer #227463 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! We want to form a license plate using 4 letters (A-Z) followed by 3 numbers (0-9). Both may be used more then once. A license plate is chosen randomly. What is the probability that the letter A is not used? \n" ); document.write( "---- \n" ); document.write( "Number of plates with no \"A\" = 25^4*10^3 \n" ); document.write( "---- \n" ); document.write( "Number of plates with no restriction = 26^4*10^3 \n" ); document.write( "----------------------------------------------------- \n" ); document.write( "P(letter A not used) = 25^4/26^4 = 0.8548 \n" ); document.write( "======================== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |