document.write( "Question 442975: A multiple choice test has five choices for every question. What is the probability that you get 3 out of the first 10 questions right? \r
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document.write( "I thought the answer would be .8 to the power of 7 times .2 to the power of 3, but that is not correct per the answer guide.\r
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document.write( "Please help. \n" );
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Algebra.Com's Answer #305536 by swincher4391(1107) You can put this solution on YOUR website! You have a (1/5) chance that you will get a 100% on this test. If you just want to get a 30% on the test, you would have a (1/5)*(100/30) chance of getting a 30% or... (100/150) = (2/3)\r \n" ); document.write( "\n" ); document.write( "You have a 2/3 chance of getting a 30%. \n" ); document.write( " |