document.write( "Question 560154: Suppose that 10% of Americans are afraid of being alone in a house at night. If a random sample of 12 Americans is selected, find the following probability by using the binomial table. There are exactly 3 people in the sample who are afraid of being alone at night. \n" ); document.write( "
Algebra.Com's Answer #363744 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! Suppose that 10% of Americans are afraid of being alone in a house at night. If a random sample of 12 Americans is selected, find the following probability by using the binomial table. There are exactly 3 people in the sample who are afraid of being alone at night. \n" ); document.write( "------- \n" ); document.write( "Binomial Problem with n = 12 and p(afraid) = 0.1 \n" ); document.write( "--- \n" ); document.write( "P(x = 3) = 12C3*0.1^3*0.9^9 = binompdf(13,0.1,3) = 0.0997 \n" ); document.write( "========================= \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |