Find the mean absolute deviation of each data set. What do you notice about the means of the two data sets? About the mean absolute deviations of the two data sets? Data Set 1: 47, 46, 51, 54, 57
Data Set 2: 15, 25, 51, 77, 87

The mean absolute deviation of data Set 1 is

The mean of the data set is 51

51

Step-by-step explanation:

H̲̅ᴇ̲̅ʏ̲̅!̲̅ L̲̅ᴇ̲̅ᴛ̲̅'̲̅s̲̅ ɢ̲̅ᴇ̲̅ᴛ̲̅ ʜ̲̅ᴇ̲̅ʟ̲̅ᴘ̲̅ɪ̲̅ɴ̲̅ɢ̲̅.̲̅

To do this, we're going to follow the good old trick of the process of elimination. A number can't be irrational if it doesn't end/doesn't repeat.

a. -0.3 is rational because it ends.
b.  is irrrational because it results to about 1.732, then it keeps going on without repeating.
c. 1/3 is rational because it repeats.
d. 0.13 (repeating) is rational becuase it repeats.

The answer is b.

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