document.write( "Question 320299: A drawer contains 4 red socks, 7 white socks, and 11 blue socks. Without looking, you draw out a sock, return it, and draw out a second sock. What is the probability that the first sock is blue and the second sock is blue? \n" ); document.write( "
Algebra.Com's Answer #229401 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! A drawer contains 4 red socks, 7 white socks, and 11 blue socks. Without looking, you draw out a sock, return it, and draw out a second sock. What is the probability that the first sock is blue and the second sock is blue? \n" ); document.write( "----------------------- \n" ); document.write( "P(blue on 1st draw) = 11/22 = 1/2 \n" ); document.write( "---- \n" ); document.write( "Since the blue sock is replaced, \n" ); document.write( "P(blue on 2nd draw) = 11/22 = 1/2 \n" ); document.write( "--------------------------------- \n" ); document.write( "P(2 blue with replacement) = (1/2)(1/2) = 1/4 \n" ); document.write( "================================================= \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "========== \n" ); document.write( " |