document.write( "Question 1143806: A spinner with 3/4 blue and 1/4 red is spun twice.
\n" ); document.write( "What is the probability of;
\n" ); document.write( "a) red on the first spin
\n" ); document.write( "b)blue on the first spin and red on the second
\n" ); document.write( "c) both the same color
\n" ); document.write( "d)different colors
\n" ); document.write( "

Algebra.Com's Answer #764713 by ikleyn(52781)\"\" \"About 
You can put this solution on YOUR website!
.
\n" ); document.write( "
\r\n" );
document.write( "\r\n" );
document.write( "(a)  P = \"1%2F4\".      ANSWER    (It is obvious)\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "(b)  P(first is blue AND second is red) = \r\n" );
document.write( "\r\n" );
document.write( "     = product of particular probabilities P(first is blue)*P(second is red) = \"3%2F4\".\"1%2F4\" = \"3%2F16\".    ANSWER\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "(c)  P = \"%283%2F4%29%5E2\" + \"%281%2F4%29%5E2\" = \"9%2F16+%2B+1%2F16\" = \"10%2F16\" = \"5%2F8\" = 0.625 = 62.5%.       ANSWER\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "(d)  P = \"%283%2F4%29%2A%281%2F4%29\" + \"%281%2F4%29%2A%283%2F4%29\" = \"2%2A%283%2F4%29%2A%281%2F4%29\" = \"3%2F8\" = 0.375 = 37.5%.     ANSWER\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "     Also notice that the probability of (d) is the complement to the probability of (c).\r\n" );
document.write( "
\r
\n" ); document.write( "\n" ); document.write( "All questions are answered -- the problem is solved.\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "
\n" ); document.write( "
\n" );