document.write( "Question 1156380: It is given that on average 6 birds per half hour are coming to a water pond during a hot summer day. Find the probability that
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document.write( "a. Exactly 7 birds will come to the water pond in half an hour period.
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document.write( "b. Exactly 7 birds will come to the water pond in 15 minutes period.
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document.write( "c. More than 8 birds will come to the water pond in 45 minute period. \n" );
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Algebra.Com's Answer #779092 by Boreal(15235)![]() ![]() You can put this solution on YOUR website! 7 coming to the pond with parameter 6 is e^(-6)*6^7/7!=0.1377\r \n" ); document.write( "\n" ); document.write( "in 15 minutes the parameter is 3 (Poisson is proportional to time) so e^(-3)3^7/7!=0.0216\r \n" ); document.write( "\n" ); document.write( "More than 8 birds is 9 or more which is 0.544 from the table (complement). The table shows 0.456 through 8 as cumulative. \n" ); document.write( " |