anonymous
  • anonymous
The number of toys owned by eight classmates is shown below: 4, 3, 4, 5, 6, 6, 8, 4 Part A: What is the mean of the data? Show your work. (4 points) Part B: Use your answer from Part A to calculate the mean absolute deviation for the data. Show your work. (6 points)
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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welshfella
  • welshfella
Par A the mean is the sum of the 8 numbers divided by 8.
anonymous
  • anonymous
so five
anonymous
  • anonymous
i need help on part b

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More answers

welshfella
  • welshfella
yes
welshfella
  • welshfella
Give me a second on that one. My memory is a bit hazy on that so i need to check something.
anonymous
  • anonymous
ok
welshfella
  • welshfella
you take each value and find the difference between it and the mean. for example the first value 4 the difference is mean-4 = 5-4 = 1
anonymous
  • anonymous
i dont get that
welshfella
  • welshfella
Do that with each value (in a table if you like) and add these computed differences up Divide the result by 8 and you have the mean absolute deviation.
welshfella
  • welshfella
|dw:1438622310370:dw|
anonymous
  • anonymous
can you help me that
anonymous
  • anonymous
so i have to divide 8 by 5 4 and 1
welshfella
  • welshfella
|dw:1438622377903:dw|
welshfella
  • welshfella
get the idea?
anonymous
  • anonymous
no
anonymous
  • anonymous
|dw:1438622579346:dw|
anonymous
  • anonymous
i dont get that
welshfella
  • welshfella
you are subtracting each of the 8 numbers from the mean (which is 5) or if the number is greater than 5 you subtract 5 from the number.
anonymous
  • anonymous
so 10
welshfella
  • welshfella
|dw:1438622689861:dw|
anonymous
  • anonymous
ok 10
welshfella
  • welshfella
yes 10 is correct
welshfella
  • welshfella
now divide 10 by 8 and you have the mean absolute deviation.
anonymous
  • anonymous
1.25
welshfella
  • welshfella
correct
welshfella
  • welshfella
it gives a measure of the spread of the numbers around the mean.
anonymous
  • anonymous
ok can you help me with another one
welshfella
  • welshfella
I'll have to come back in a bit
anonymous
  • anonymous
so no

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