Math CC7/8 – Mar. 13 Math Notebook: Things Needed Today (TNT):

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Presentation transcript:

Math CC7/8 – Mar. 13 Math Notebook: Things Needed Today (TNT): Pencil/Math Notebook/Calculator/Book p.4 Sample & Population 1.1-M.A.D Math Notebook: Topic: Using Center & Spread HW: Worksheet

What’s Happening Today? Warm up New Unit – Samples & Populations Begin 1.1 A, M.A.D

Warm Up Describe the following and tell how to find them … Mean, Median, Mode, Range Mean – average of the data set, add (+) all data and divide (÷) by the total # of data points Median – middle, put data in order from least to greatest, find middle number or the average of the middle 2 points Mode – most often occurring number Range – difference between maximum and minimum

Samples & Populations

Question Given a set of results, how might you use measures of center and variability (spread) to judge overall performance?

Who performs better on math tests, Jun or Mia? Explain. (Discuss this question with your buddy/truddy and be ready for either of you to explain what you talked about)

Essential Vocabulary Deviation: the distance that 2 points are separated from each other Deviation from the mean: How far the data point is from the mean. To calculate: subtract the 2 values (the data point and the mean) Mean Absolute Deviation (MAD): the average distance of all the data points from their mean

Mean Absolute Deviation - Video Watch and take notes from video - MAD

MAD worksheet Complete first side as a class COMPLETE back side as homework