In the data set below, what is the mean absolute deviation? 2, 1, 9, 4, 3 If the answer is a decimal, round it to the nearest tenth. mean absolute deviation (MAD): _____

Calculate Mean: Calculate the mean of the data set 2, 1, 9, 4, 3. Add all the numbers: 2 + 1 + 9 + 4 + 3 = 19. Divide by the number of data points: 19 / 5 = 3.8. Mean = 3.8 Find Deviations: Find the absolute deviations from the mean for each data point. For 2: |2 - 3.8| = 1.8 For 1: |1 - 3.8| = 2.8 For 9: |9 - 3.8| = 5.2 For 4: |4 - 3.8| = 0.2 For 3: |3 - 3.8| = 0.8 List of absolute deviations: 1.8, 2.8, 5.2, 0.2, 0.8 Calculate Mean Deviations: Calculate the mean of the absolute deviations. Add all the absolute deviations: 1.8 + 2.8 + 5.2 + 0.2 + 0.8 = 10.8. Divide by the number of data points: 10.8 / 5 = 2.16. Mean absolute deviation = 2.16 Round Mean Deviation: Round the mean absolute deviation to the nearest tenth. 2.16 rounded to the nearest tenth is 2.2. Final mean absolute deviation = 2.2

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In the data set below, what is the mean absolute deviation? $\newline$ $2, 1, 9, 4, 3$ $\newline$ If the answer is a decimal, round it to the nearest tenth. $\newline$ mean absolute deviation (MAD): $\_\_$

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Grade 8

Calculate mean absolute deviation

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Q. In the data set below, what is the mean absolute deviation?

\newline

2, 1, 9, 4, 3

\newline

If the answer is a decimal, round it to the nearest tenth.

\newline

mean absolute deviation (MAD):

\_\_

Calculate Mean: Calculate the mean of the data set $2, 1, 9, 4, 3$ . Add all the numbers: $2 + 1 + 9 + 4 + 3 = 19$ . Divide by the number of data points: $19 / 5 = 3.8$ . Mean = $3.8$
Find Deviations: Find the absolute deviations from the mean for each data point. $\newline$ For $2$ : $|2 - 3.8| = 1.8$ $\newline$ For $1$ : $|1 - 3.8| = 2.8$ $\newline$ For $9$ : $|9 - 3.8| = 5.2$ $\newline$ For $4$ : $|4 - 3.8| = 0.2$ $\newline$ For $3$ : $|3 - 3.8| = 0.8$ $\newline$ List of absolute deviations: $|2 - 3.8| = 1.8$ $0$
Calculate Mean Deviations: Calculate the mean of the absolute deviations. $\newline$ Add all the absolute deviations: $1.8 + 2.8 + 5.2 + 0.2 + 0.8 = 10.8$ . $\newline$ Divide by the number of data points: $\frac{10.8}{5} = 2.16$ . $\newline$ Mean absolute deviation = $2.16$
Round Mean Deviation: Round the mean absolute deviation to the nearest tenth. $\newline$ $2.16$ rounded to the nearest tenth is $2.2$ . $\newline$ Final mean absolute deviation = $2.2$