document.write( "Question 221038: A student randomly guesses the answers to a five question true/false test. If there is a 50% chance of guessing correctly on each question, what is the probability that the student misses exactly 1 question? \n" ); document.write( "
Algebra.Com's Answer #165869 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! A student randomly guesses the answers to a five question true/false test. If there is a 50% chance of guessing correctly on each question, what is the probability that the student misses exactly 1 question? \n" ); document.write( "----------------- \n" ); document.write( "It's a binomial problem with n=5, p=1/2, x=1 \n" ); document.write( "------------------------------- \n" ); document.write( "P(x=1) = 5C1(1/2)^1(1/2)^4 = 5*1/32 = 5/32 \n" ); document.write( "============================================= \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |