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# Day 4 measures of central tendency

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### Day 4 measures of central tendency

1. 1. AIM: Most Appropriate Measureof Central Tendency Do Now 1
2. 2. 2
3. 3. AIM: Most Appropriate Measureof Central Tendency Do Now The table below shows the leading shot blockers in the WNBA during the 2001 season. Player Shots Blocked Vicky Bullet 58 Margo Drydek 113 Lauren Jackson 64 Lisa Leslie 71 Maria Stepanoya 64 1.) Read the following definition: Outlier: A value that is much less or much more than the other values. 2.) Based on that definition, what is the outlier in the Shots Blocked data set? 3
4. 4. Anticipatory Set We will now explore the affect of the outlier on the measures of central tendency. Player Shots Blocked Vicky Bullet 58 Margo Drydek 113 Lauren Jackson 64 Lisa Leslie 71 Maria Stepanoya 64 With Outlier Without OutlierData Set: 58 6464 58 64 71 113 Data Set: 64 71 Measures of Central Tendency: Measures of Central Tendency: 1.) How does the outlier affect the mean and median of the data? 2.) Which is the most appropriate measure of central tendency? 4
5. 5. 5
6. 6. Think-Pair-Share Activity:1.) The data shows Sara‛s scores for the last 5 math tests: , , , , 88 90 55 94 89 a.) What is the outlier? b.) What is the mean and median with the outlier? 88 89 55 90 94 c.) What is the mean and median without the outlier? 88 89 90 94 d.) How does the outlier affect the mean and median of the data? e.) Which is the most appropriate measure of central tendency? 6
7. 7. 2.) For the following data sets, select whether the mean or themedian would be the most appropriate measure of central tendency.Provide a reason. a.) 50, 52, 60, 58, 54, 55 b.) 7, 4, 30, 9, 5, 2 c.) -60, -58, 65, -62, -59, -55 d.) -2, 1, 0, -4, -3, 5, 2 e.) Pizza, Hamburger, Chicken, Pizza, Pizza 7
8. 8. 2.) For the following data sets, select whether the mean or themedian would be the most appropriate measure of central tendency.Provide a reason. a.) 50, 52, 60, 58, 54, 55 Mean, no outlier b.) 7, 4, 30, 9, 5, 2 Median, outlier present c.) -60, -58, 65, -62, -59, -55 Median, outlier present d.) -2, 1, 0, -4, -3, 5, 2 Mean, no outlier e.) Pizza, Hamburger, Chicken, Pizza, Pizza Mode, data is not numerical 8
9. 9. BEFORE YOU LEAVE:1.) Create a data set below.2.) Trade your sheet with your partner.3.) Would the mean or the median better represents the dataset and provide an explanation. 9
10. 10. Mr. Tjerslands Math 7Homework: Castle Homework due Friday 10
11. 11. AIM: Most Appropriate Measureof Central Tendency Outlier: A value that is much less or much more than the other values.2.) For the following data sets, select whether the mean or themedian would be the most appropriate measure of central tendency.Provide a reason. a.) 50, 52, 60, 58, 54, 55 Mean, no outlier b.) 7, 4, 30, 9, 5, 2 Median, outlier present c.) -60, -58, 65, -62, -59, -55 Median, outlier present d.) -2, 1, 0, -4, -3, 5, 2 Mean, no outlier e.) Pizza, Hamburger, Chicken, Pizza, Pizza Mode, data is not numerical 11