lynn asked six friends how many cars their parents own. she recorded 1, 1, 2, 2, 2, and 4 cars. what is the mean absolute deviation of the number of cars? round to the nearest tenth, if needed. a. 0.7 cars b. 1.1 cars c. 1.4 cars d. 2 cars

First, to solve for the mean absolute deviation, we need the mean of the data set. So for this case, it's (1+1+2+2+2+4)/6 = 2. To get the mean absolut deviation, we'll need the average of the difference between each data and the mean. That is [ (2 - 1) + (2 -1) + (2 - 2) + (2 - 2) + (2 - 2) + (4 - 2) ]/6 = 4/6 = 0.67. From the choices, the closest is 0.7. So the answer must be A.

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