A jewelry stand sells 5 different pairs of earrings. The earrings sell for $12, $9, $6, $8, and $10. What is the mean absolute deviation of the prices? Round to the nearest cent, if necessary.
@Michele_Laino @dan815
@confluxepic @Conqueror
@confluxepic HELP
step#1 we have to find the mean value, of this set of values: $12, $9, $6, $8, and $10.
that mean value m is: \[m = \frac{{12 + 9 + 6 + 8 + 10}}{5} = ...?\]
umm
9
ok!
now, you have to compute these quantities: \[\begin{gathered} 12 - 9 = ...? \hfill \\ 9 - 9 = ...? \hfill \\ 9 - 6 = ...? \hfill \\ 9 - 8 = ...? \hfill \\ 10 - 9 = ...? \hfill \\ \end{gathered} \]
1.3 2.0 3.3 4.1 5.1
sorry, 12-9=3
please, continue
umm i don't know what to do next :c
@Michele_Laino
we have: \[\begin{gathered} 12 - 9 = 3 \hfill \\ 9 - 9 = 0 \hfill \\ 9 - 6 = 3 \hfill \\ 9 - 8 = 1 \hfill \\ 10 - 9 = 1 \hfill \\ \end{gathered} \]
Those quantities, are the absolute deviations. now, your answer, namely the MAD, or mean absolute deviation is given by the subsequent computation: \[\large \frac{{3 + 0 + 3 + 1 + 1}}{5} = ...?\]
8/5
and 8:5=1.6
so, your answer is 1.6
thanks
thanks!
i have 4 more then i am done can you help please
ok!
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