Quiz_section Worksheet - 041415 Quiz section Version 1 <...

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041415 Quiz section Version 1 < Part I > This is the histogram of expected score that you wrote down in your quiz. It includes all 170 students who took the quiz. Let’s discuss the points below. What is a variable? What is an individual? Is it a population or a sample? Is it a categorical or numerical variable? How do you describe the shape of this distribution? Where’s the center (approximately)?

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