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How to Make a Stem and Leaf Plot

When you finish grading an exam, you might want to determine how your class performed on the test. If you do not have a calculator handy, you can calculate the mean or median of the test scores. Alternately, it is helpful to see how the scores are distributed. Do they resemble a bell curve? Are the scores bimodal?
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Interesting

Why We Don't Read

Studies conducted by the National Endowment for the Arts show that Americans, in general, don't read much literature. The question is, "Why not?" There are lots of excuses people give as the reasons why they haven't picked up a good book in months-or even years. Fortunately, for every one of them, there's often a solution.
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Advices

American Lobster

Some think of lobster as a bright red delicacy served up with a side of butter. The American lobster (often called the Maine lobster), while a popular seafood, is also a fascinating animal with a complex life. Lobsters have been described as aggressive, territorial, and cannibalistic, but you may be surprised to know they've also been referred to as "tender lovers".
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Interesting

The Lost Generation and the Writers Who Described Their World

The term “Lost Generation” refers to the generation of people who reached adulthood during or immediately following World War I. Demographers generally consider 1883 to 1900 as the birth year range of the generation. Key Takeaways: The Lost Generation The “Lost Generation” reached adulthood during or shortly after World War I.
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Interesting

Profile of Serial Killer William Bonin, The Freeway Killer

William Bonin was a serial killer suspected of sexually assaulting, torturing and killing at least 21 boys and young men in Los Angeles and Orange County, California. The press nicknamed him the "The Freeway Killer," because he would pick up young boys who were hitchhiking, sexually assault and murder them, then dispose of their bodies along the freeways.
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Reviews

The Difference Between Descriptive and Inferential Statistics

The field of statistics is divided into two major divisions: descriptive and inferential. Each of these segments is important, offering different techniques that accomplish different objectives. Descriptive statistics describe what is going on in a population or data set. Inferential statistics, by contrast, allow scientists to take findings from a sample group and generalize them to a larger population.
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