anonymous
  • anonymous
The number of pets owned by eight classmates is shown below: 1, 3, 2, 2, 1, 3, 3, 1 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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chestercat
  • chestercat
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anonymous
  • anonymous
I just need help with b
anonymous
  • anonymous
I got 2 for the absolute deviation is that correct?
anonymous
  • anonymous
what up

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anonymous
  • anonymous
it is 2
anonymous
  • anonymous
so you was correct
anonymous
  • anonymous
can you show me how you know?
welshfella
  • welshfella
what did you get for the mean?
anonymous
  • anonymous
first you add all of the numbers which was 16 and then divide by how many people there was which was 8 so 16 divided by 8 is 2
welshfella
  • welshfella
thats the mean 2
anonymous
  • anonymous
for the part a i got 2
welshfella
  • welshfella
to get the mean absolute deviation you add up the absolute differences of each value from the mean . Add these values then divide by 8
anonymous
  • anonymous
yes
welshfella
  • welshfella
1 2-1 = 1 3 3 -2 = 1 2 2 -2 = 0 2 2 - 2 = 0 and so on
anonymous
  • anonymous
i did this to find the absolute deviation 1-2+3-2+2-2+2-2+1-2+3-2+3-2+1-2
anonymous
  • anonymous
so all that above 8
anonymous
  • anonymous
sure
anonymous
  • anonymous
so 6/8
anonymous
  • anonymous
yes
anonymous
  • anonymous
|dw:1439408182902:dw|
welshfella
  • welshfella
Hmm to be honest i'm not sure I'll have to check
anonymous
  • anonymous
same im confused im going to go over it again and you tell me how you it so we can compare
anonymous
  • anonymous
*do
welshfella
  • welshfella
right - you take ABSOLUTE values so for instance first values is 1: 1 - 2 = -1 The absolute value of -1 is 1. so there are no negatives
welshfella
  • welshfella
so 6/8 is not correct
anonymous
  • anonymous
alright
anonymous
  • anonymous
i was doing something else what
welshfella
  • welshfella
oh hold on it does work out to 6/8 it is 1+ 1 +0+ 0 + 1+ 1+1 + 1 = 6 so 6/8 or 3/4
anonymous
  • anonymous
Yeah
anonymous
  • anonymous
i see
anonymous
  • anonymous
ok
welshfella
  • welshfella
what you wrote 1-2+3-2+2-2+2-2+1-2+3-2+3-2+1-2 = 0

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