101 Ch. 1

# 101 Ch. 1 - • Variation The extent or degree to which...

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Chapter One Stats Starts Here

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How can I do well in this class? Attend all lectures. Complete all assignments. Go over answers to assignments. READ and STUDY the textbook. Come to office hours with questions. Form study groups with fellow students. Make sure you can use a calculator. Make sure you can do basic algebra.
What are Statistics? Statistics are particular calculations made from data. Example: In this class there are 34 third year students. This is data. 34% of this class are third year students. This is a statistic.

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What is Statistics? Statistics is the science of gaining information from data. This is how stats touches all other subjects. We get our data from all other subjects: i.e. sociology, biology, engineering, economics, apparel and fashion merchandising, and more.

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Unformatted text preview: • Variation: The extent or degree to which something varies. • Accuracy: Precision, exactness. What Statistics is NOT • Statistics is not math. – We use math to do statistics, but the emphasis is on interpretation. Environment Agriculture, Ecology, Forestry, Animal Populations Government Census, Law, National Defense Physical Sciences Astronomy, Chemistry, Physics Areas where STATISTICS are used Health & Medicine Genetics, Clinical Trials, Epidemiology, Pharmacology Business Economics, Engineering, Marketing, Computer Science What do statisticians do? • Study the safety of nuclear power plants. • Evaluate the impact of pollution . • Determine the effectiveness of new drugs . • Estimate the U.S. unemployment rate. • Analyze consumer demand for products. • Plan and analyze agricultural experiments....
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101 Ch. 1 - • Variation The extent or degree to which...

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