document.write( "Question 1189103: If two dice are rolled simultaneously 180 times. on how many occasions would you expect to get a double. So I'm a little stuck on how to solve this. Also, by double do they mean two's? \n" ); document.write( "

Algebra.Com's Answer #820339 by ikleyn(52873) $\"\"$ $\"About$

You can put this solution on YOUR website!
.
\n" ); document.write( "

\r\n" );
document.write( "\r\n" );
document.write( "Two dice rolling has 36 possible different outcomes (36 = 6*6).\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "The doubles are (1,1), (2,2), (3,3), (4,4), (5,5), (6,6).\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "Of 36 possible outcomes, exactly 6 outcomes are doubles.\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "So, the expected value of doubles from 180 rollings is 1/6 of 180, which is 30 occasions.    ANSWER\r\n" );
document.write( "

\r
\n" ); document.write( "\n" ); document.write( "Solved and explained.\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "

\n" );