document.write( "Question 246857: A student takes a 20 questions, true/ false exam and guesses on each questions.What will be the probability of passing if the passing grade is 15 correct out of 20. Is this event likely to occur? \n" ); document.write( "
Algebra.Com's Answer #180171 by richwmiller(17219)![]() ![]() You can put this solution on YOUR website! There is a 50% chance of getting each answer correct by guessing on a true false question. So the student can expect to get 10 correct by guessing. \n" ); document.write( "The student could get more correct (or fewer) but it is not likely.\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |