Math 130 Day 2 summary.pdf

Math 130 Day 2 summary.pdf - Statistics vs statistics...

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Statistics vs. statistics Definition: Statistics is the science of collecting, organizing, summarizing and interpreting data. Question: What is Statistics (with a capital S)? Note : There are 2 main ways to summarize data… 1. With a picture or a graph 2. With a number or small collection of numbers that tell you something about the data
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Statistics vs. statistics Definition: A statistic is a number that can be calculated from a set of data that summarizes the data in some way Question: What is a statistic (with a lowercase s)? Note : There are 2 main ways to summarize data… 1. With a picture or a graph 2. With a number or small collection of numbers that tell you something about the data
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Example of statistics Come up with some statistics for this data set. Ex: The following data gives the ages of the students in one of my previous statistics classes. Student Ages 36 21 19 26 29 29 22 30 22 21 24 20 26 21 20 26 20 18 24 22 19 40 19 24 16 20 23 21 46 21 19 20 21 46 24 20 19 21 22 34
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Sec. 3.1: Measures of Central Tendency (measures of center) Sec. 3.2: Measures of Dispersion (measures of spread) Chapter 3: Numerically Summarizing Data
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Sec. 3.1: Measures of Central Tendency (measures of center)
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Sec. 3.1: Measures of Central Tendency (measures of center) Why would you want to measure the center of data?
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