document.write( "Question 302159: 3. Which of the following experiments does NOT have equally likely outcomes?
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\n" ); document.write( "Choose a number at random from 1 to 7.
\n" ); document.write( "Toss a coin.
\n" ); document.write( "Choose a letter at random from the word SCHOOL.
\n" ); document.write( "None of the above.\r
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\n" ); document.write( "\n" ); document.write( "I am a substitute teacher who teaches K-6. I can complete all the probability problems except this one that I found on a web-site. I must have a mental block.
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Algebra.Com's Answer #216681 by Theo(13342)\"\" \"About 
You can put this solution on YOUR website!
Choose a number at random from 1 to 7.
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\n" ); document.write( "Choose a letter at random from the word SCHOOL.
\n" ); document.write( "None of the above. \r
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\n" ); document.write( "\n" ); document.write( "I believe the third choice would not have an equally likely probability for each of the letters to be picked.\r
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\n" ); document.write( "\n" ); document.write( "For the first choice, the numbers are 1,2,3,4,5,6,7 with equal probability to pick any one of them because there is only one of each number.\r
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\n" ); document.write( "\n" ); document.write( "There are 7 letters and each has a probability of 1/7 to be picked.\r
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\n" ); document.write( "\n" ); document.write( "For the second choice, the possibilities are heads or tail with equal probability to pick any one of them because there is only one of each possibility.\r
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\n" ); document.write( "\n" ); document.write( "There are 2 possible outcomes and each has a probability of 1/2 to be picked.\r
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\n" ); document.write( "\n" ); document.write( "With the word SCHOOL, the probability for the letter O to come up is two times the probability for any of the other letters which have only one of each.\r
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\n" ); document.write( "\n" ); document.write( "Total letters are 6.\r
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\n" ); document.write( "\n" ); document.write( "Probability of S = 1/6
\n" ); document.write( "Probability of C = 1/6
\n" ); document.write( "Probability of H = 1/6
\n" ); document.write( "Probability of O = 2/6 *****
\n" ); document.write( "Probability of L = 1/6\r
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