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Mean, Median and Mode. Mean, Median, and Mode. Measures of Central Tendency. Mean, Median and Mode. What is the mean?. Mean, Median, and Mode. The SUM of the data, divided by the number of items in the set of data ….. commonly called “the average”. Mean, Median and Mode.

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## Mean, Median, and Mode

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**Mean, Median and Mode**Mean, Median, and Mode Measures of Central Tendency**Mean, Median and Mode**What is the mean? Mean, Median, and Mode The SUM of the data, divided by the number of items in the set of data ….. commonly called “the average”.**Mean, Median and Mode**What is the mode? Mean, Median, and Mode The data item that appears the “MOST”**Mean, Median and Mode**What if the data all appear the same number of times? 1,1,2,2,3,3,4,4 Mean, Median, and Mode**1,1,2,2,3,3,4,4**Mean, Median, and Mode There is NO mode**Can there be more than one mode?**1,2,2,3,4,4,5,6,7 Mean, Median, and Mode**1,2,2,3,4,4,5,6,7**Yes, there are two modes. What are they? Mean, Median, and Mode 2 and 4**Mean, Median and Mode**What is the median? Mean, Median, and Mode**What is the median?**The middle number in the set of data when written “in order” (first step we do) Given: 2,14,28,0,1,1 Reorder from least to greatest 0,1,1,14,28 The middle number is 1 Mean, Median, and Mode**What if you have an even set of numbers?**Given: 10, 0, 20, 30 Reorder from least to greatest 0,10, 20, 30 Add the two middle numbers together. Mean, Median, and Mode Divide by 2. What is your median? 15**Mean, Median and Mode**Which will an outlier affect the most: the mean, median or mode? (Hint: Think of class test scores What is an outlier? Mean, Median, and Mode A data item that is far apart from the rest of the data items**Mean, Median and Mode**What is the range? Mean, Median, and Mode The difference between the largest and smallest data values**Step 1 – Rewrite in order from least to greatest**Mean, Median and Mode Let’s try one … Mean, Median, and Mode 2, 1, 0, 1, 5, 3, 4, 2, 0, 3, 1, 2**Mean, Median and Mode**Mean 2 Range 5 Median 2 Mode 1 and 2 Mean, Median, and Mode 2, 1, 0, 1, 5, 3, 4, 2, 0, 3, 1, 2**Mean, Median and Mode**Test scores in an Algebra class: 99, 85, 80, 25, 99, 100 What is the mean, median, mode and range? Mean, Median, and Mode Mean 81.3 Median 92 Mode 99 Range 75**Mean, Median and Mode**Write a paragraph about what would be your most useful indicator of central tendency in this case: You are ordering a small number of shoes for your shoe store based on the sales of sizes from last year. Write why you made your selection. Why did you not choose the other two? Mean, Median, and Mode

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