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Mathematics 10 Online
OpenStudy (anonymous):

.5, 3.2, 3.8, 3.5, 2.8, 4.0 Find the mean absolute deviation. (Round your answer to the nearest hundreth.)

OpenStudy (anonymous):

when finding the mean..add all the values and divide it by the total number of your sample.

OpenStudy (blockcolder):

Whip out your calculator and do the ff: 1. Find the mean of the values. (Call this \(\mu\).) 2. Compute each of the ff: \(\large |0.5-\mu|, |3.2-\mu|, |3.8-\mu|, |3.5-\mu|, |2.8-\mu|, |4-\mu|\). 3. Add these. That's how you get mean absolute deviation.

OpenStudy (blockcolder):

Oops. Step 3 should have been "Find the mean of these".

OpenStudy (anonymous):

? lost

OpenStudy (blockcolder):

Where, exactly?

OpenStudy (anonymous):

so its 22.3

OpenStudy (blockcolder):

Hold on, lemme check.

OpenStudy (anonymous):

ok

OpenStudy (anonymous):

sooooooooo ?

OpenStudy (blockcolder):

Nope, it's approximately 0.88. Could you tell me what you did?

OpenStudy (anonymous):

i added The Numbers up

OpenStudy (anonymous):

can you show me how you got 0.88

OpenStudy (blockcolder):

Okay. So the mean of the numbers is 2.96667... And then I get all of the numbers I mentioned in my first post. Then I got the mean of all these numbers, and that's 0.88

OpenStudy (anonymous):

Did You Round It ?

OpenStudy (blockcolder):

Only for the last part. For everything else, I used all the decimal points.

OpenStudy (anonymous):

how do you get the mean of something ?

OpenStudy (blockcolder):

Add all the values whose mean we want, then divide by the number of the values. Example: The mean of 1, 3, 5, and 7 is (1+3+5+7)/4=4. Okay so far? :)

OpenStudy (anonymous):

Thanks .

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