document.write( "Question 398336:  i ask u question today 
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document.write( "A STUDENT IS GIVEN THREE HISTORICAL EVENTS TO MATCH.\r
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document.write( "1)mahatma gandhi's birthday
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document.write( "2)word war3
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document.write( "3)India;s independence
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document.write( "and three years(1914,1947,1896)
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document.write( "IF HE DOES IT BY GUESSING.
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document.write( "WHAT IS THE PROBABILITY DISTRIBUTION OF NO. OF ANSWERS GUESSED CORRECTLY?\r
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document.write( "i got the answer but,...............
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document.write( "can u give me explanation how sample space is 6
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document.write( "plzzzzzzzz \n" );
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| Algebra.Com's Answer #282292 by stanbon(75887)      You can put this solution on YOUR website! Sometimes it helps to list the elements of the sample space \n" ); document.write( "so you can see the possibilities and the probabilities. \n" ); document.write( "--- \n" ); document.write( "Use \n" ); document.write( "(1/1)(2/2)(3/3) to indicate correctly matching all three \n" ); document.write( "--- \n" ); document.write( "(1/1)(2/3)(3/2) is one match \n" ); document.write( "-- \n" ); document.write( "(2/2)(1/3)(3/1) is one match \n" ); document.write( "--- \n" ); document.write( "(3/3)(1/2)(2/1) is one match \n" ); document.write( "--- \n" ); document.write( "If you have 2 correct matches the 3rd match must also be correct. \n" ); document.write( "--- \n" ); document.write( "(1/2)(2/3)(3/1) is no match \n" ); document.write( "--- \n" ); document.write( "(1/3)(2/1)(3/2) is no match \n" ); document.write( "=============================== \n" ); document.write( "Those are the six. \n" ); document.write( "=============================== \n" ); document.write( "Why six ? \n" ); document.write( "You have three to match with three. \n" ); document.write( "#1 can match with any of the 3 \"answers\". \n" ); document.write( "#2 can match with 2 \"answers\" that remain. \n" ); document.write( "#3 can only match with the one \"answer\" tha remains. \n" ); document.write( "--- \n" ); document.write( "3*2*1 = 6 \n" ); document.write( "==================== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "-- \n" ); document.write( " \n" ); document.write( " |