document.write( "Question 847529: the number of typographical error per page in a manuscript in poisson distributed with a mean of 0.20 per page. determine the probability on a given page, A.) there are exactly 3 typographical errors B.) there are at most 2 typographical errors \n" ); document.write( "
Algebra.Com's Answer #510509 by swincher4391(1107)![]() ![]() You can put this solution on YOUR website! This sounds like a poisson question.\r \n" ); document.write( "\n" ); document.write( "If we have that \n" ); document.write( "\n" ); document.write( "Then we can look at P[X=n] = \n" ); document.write( "\n" ); document.write( "And so P[X=3] = \n" ); document.write( "\n" ); document.write( "P[X<=2] = P[X=0] + P[X = 1] + P[X=2]\r \n" ); document.write( "\n" ); document.write( "I'll factor out \n" ); document.write( "\n" ); document.write( "= |