1. 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

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

3. 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

4. Samples & Populations

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

8. 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)

10. 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

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

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