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math115

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1. find the median 4,5,6,8,11,17=6
2.find the median and the mean 95,75,76,86,96,71,68,81,95,76,69,82,93,88,94= median 81 mean 83
3. find the mean 13,15,18,18,18,19,22,26,28,33=21
4. find the median 47,25,58,28,67,66=52 1/2

  • math115 -

    1. No
    2. I didn't check, you need to put them in order.
    3. did you add them and divide by 10? the reason I asked is that your mean has four greater, six below. That is not a usual result.
    4. Looks right, I didn't do the math.

  • math115 -

    1. The median is the number in the middle -- which in your data is between 6 and 8. Therefore that median is 7.

    http://mathforum.org/library/drmath/view/57598.html

    The median is wrong for 2. Please count again. I also get a different mean.

  • math115 -

    The median is the number for which there are as many instances that are above
    that number as there are instances below it. To find the median, follow these
    steps:
    Step 1 Rewrite the numbers in order from smallest to largest.
    Step 2 Count from both ends to find the number in the middle.
    Step 3 If there are two numbers in the middle, add them together and find
    their mean.

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