document.write( "Question 77065: Find the mean and the median.
\n" ); document.write( "-2, -7/4, 3/4, 4, 9
\n" ); document.write( "These are my choices. I came up with Mean 2, Median 3/4 but I am not positive.\r
\n" ); document.write( "\n" ); document.write( "Mean 2, Median 3/4
\n" ); document.write( "Mean 10, Median 2
\n" ); document.write( "Mean 2, Median 2
\n" ); document.write( "Mean 10, Median 3/4\r
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Algebra.Com's Answer #55237 by bucky(2189)\"\" \"About 
You can put this solution on YOUR website!
You should be more confident in your work ... your answers are correct!
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\n" ); document.write( "To find the mean (or average) you algebraically add all the numbers together and divide
\n" ); document.write( "by the quantity of numbers you have. In this problem you added:
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\n" ); document.write( "\"+-2+-%287%2F4%29+%2B%283%2F4%29+%2B4+%2B9\"
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\n" ); document.write( "and got the total of 10. There are 5 numbers so you divide the total 10 by 5 to find
\n" ); document.write( "that the mean is:
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\n" ); document.write( "\"10%2F5+=+2\"
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\n" ); document.write( "The median is just the middle number when the series is arranged in order that the numbers appear
\n" ); document.write( "on the number line ... from left to right. The numbers are already in ascending order as
\n" ); document.write( "they were given to you ... as you go from left to right each number is greater than the
\n" ); document.write( "preceding number. 3/4 is the middle number in the series. It has two numbers that are
\n" ); document.write( "less than it and two numbers that are greater than it. So 3/4 is the median. As long
\n" ); document.write( "as the total number of terms in the series is an odd number (in this case 5) there will
\n" ); document.write( "be a middle term ... a term that has an equal number of terms below it as there are above it.
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\n" ); document.write( "Good job. But let me ask you something about the median if the series has an even number
\n" ); document.write( "of terms.
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\n" ); document.write( "Suppose you are given the following series ... 2, 4, 6, 8, 10, 12 ... and are asked what
\n" ); document.write( "the median is. How do you do that? It can't be 6 because there are only 2 numbers
\n" ); document.write( "less than 6 while there are three numbers greater than 6. And it can't be 8 because
\n" ); document.write( "there are 3 numbers less than 8 but only 2 numbers greater than 8. The answer is that
\n" ); document.write( "you find the two numbers in the middle of the series and average those two numbers.
\n" ); document.write( "In this series the pair of numbers in the middle are 6 and 8. Add them together to get
\n" ); document.write( "14 and divide 14 by 2 to find that their average is + 7. So the median of this series is
\n" ); document.write( "+7 ... a number that doesn't even appear in the series.
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\n" ); document.write( "Let me give you another series with an even number of terms and see if you can find the
\n" ); document.write( "median (just for practice). The series is:
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\n" ); document.write( "-5, -1, 7, 14, 17, 21, 24, 200
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\n" ); document.write( "What is the median of this series? The answer is 15.5 and how did I get that?
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\n" ); document.write( "(Hint: the middle pair is 14 and 17. Average them.)
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\n" ); document.write( "Hope this helps ...
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