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is3535
 one year ago
A music shop has 5 different brands of guitar strings. The 5 different brands sell for $16, $20, $15, $11, and $13.
What is the mean absolute deviation of the prices? Round to the nearest cent, if necessary.
is3535
 one year ago
A music shop has 5 different brands of guitar strings. The 5 different brands sell for $16, $20, $15, $11, and $13. What is the mean absolute deviation of the prices? Round to the nearest cent, if necessary.

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welshfella
 one year ago
Best ResponseYou've already chosen the best response.0First work out the mean selling price

welshfella
 one year ago
Best ResponseYou've already chosen the best response.0then find the difference between the individual prices and the mean and add them up divide this total by 5

welshfella
 one year ago
Best ResponseYou've already chosen the best response.0right now work out 16  15 2015 1515 1511 and 1513

welshfella
 one year ago
Best ResponseYou've already chosen the best response.0then add these up and divide by 5 to get the MAD

is3535
 one year ago
Best ResponseYou've already chosen the best response.0now work out 16  15 2015 1515 1511 and 1513

welshfella
 one year ago
Best ResponseYou've already chosen the best response.016  15 = 1 20  15 = 5 etc

welshfella
 one year ago
Best ResponseYou've already chosen the best response.0what do you get after adding the those 5 results?

is3535
 one year ago
Best ResponseYou've already chosen the best response.0To get mean you need to add up all the numbers and divided it by how many numbers there are so....\[\frac{ 16+20+15+11+13 }{ 5 }\]

welshfella
 one year ago
Best ResponseYou've already chosen the best response.0add up the 5 results of 1615 20  15 1515 1512 and 15  13

welshfella
 one year ago
Best ResponseYou've already chosen the best response.0yes  you got the mean already = 15 now we need to find the MAD

welshfella
 one year ago
Best ResponseYou've already chosen the best response.0yea 15 is the mean then use the mean to work out the MAD by doing those 5 subtractions , adding up the results then divide the total by 5

welshfella
 one year ago
Best ResponseYou've already chosen the best response.0gotta go now study all my posts and you'll get it

is3535
 one year ago
Best ResponseYou've already chosen the best response.0can you just give me the answer

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.0well, ok, you just found the mean, which is 15, right?

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.0hm, not quite... check your math again

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.0yup! 2.4 is the right answer

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.0@is3535: you can use this website to calculate the mean absolute deviation, so you can check your answers in the future! http://www.alcula.com/calculators/statistics/meanabsolutedeviation/

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.0I mean, you still have to calculate it by hand, but you can use the website to see if you did your math right!

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0did you learn$\equiv$ and $\pmod{}$yet?
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