document.write( "Question 321387: Suppose four digits are to be randomly selected with repetitions allowed. The set of digits is {0, 1, 2, 3, 4, 5, 6, 7, 8, 9}. What is the probability that the four selected digits contain only even numbers? \n" ); document.write( "
Algebra.Com's Answer #230182 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! Suppose four digits are to be randomly selected with repetitions allowed. The set of digits is {0, 1, 2, 3, 4, 5, 6, 7, 8, 9}. What is the probability that the four selected digits contain only even numbers? \n" ); document.write( "------ \n" ); document.write( "# of even numbers: 5 \n" ); document.write( "# of selections with replacement: 4 \n" ); document.write( "--- \n" ); document.write( "# of 4 digit sequences of even numbers: 5^4 = 625 \n" ); document.write( "--- \n" ); document.write( "# of 4 digit sequences randomly selected: 10^4 \n" ); document.write( "----- \n" ); document.write( "Probability(select 4 even digits) = 625/10^4 = 0.0625 \n" ); document.write( "================ \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "================ \n" ); document.write( " |