MORE MEAN ABSOLUTE DEVIATION MAY 13, 2015.

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Presentation transcript:

MORE MEAN ABSOLUTE DEVIATION MAY 13, 2015

3. Order the seven distributions from least variability to most variability. Explain why you listed the distributions in the order that you chose.

Deviation = data point – mean

Exercises 4–6 The dot plot for the temperatures in City G is shown below. Use the d ot plot and the mean temperature of 63 degrees to answer the following questions.

TempDeviationResult Sum

5. Why should the sum of your deviations column be equal to zero? (Hint: Recall the balance interpretation of the mean of a data set.)

6. Another way to graph the deviations is to write them on a number line as follows. What is the sum of the positive deviations (the deviations to the right of the mean)? What is the sum of the negative deviations (the deviations to the left of the mean)? What is the total sum of the deviations?

Finding the Mean Absolute Deviation (MAD)

TempDeviation Result Abs

a.From the following graph, what is the sum of the absolute deviations? ?