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Lecture_E7_statistics

Lecture_E7_statistics - Lecture 18 Probability Statistics...

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Lecture 18: Probability, Statistics, Interpolation Histograms Probability Normal Distribution Random Number Generation Summary Reference: book, Chapter 7
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Histogram •A histogram is a plot of frequency of occurrence of data values versus the values themselves. Example 1: A class of 20 students with 20 scores Test 1: 61, 61, 65, 67, 69, 72, 74, 74, 76, 77, 83, 83, 85, 88, 89, 92, 93, 93, 95, 98 Test 2: 66, 69, 72, 74, 75, 76, 77, 78, 78, 79, 79, 80, 81, 83, 84, 85, 87, 88, 90, 94 10 Histogram of Test2, mean value = 79.75 10 Histogram of Test1, mean value = 79.75 6 8 r of Scores 6 8 r of Scores 2 4 Number 2 4 Numbe 60 70 80 90 100 0 Score Range 60 70 80 90 100 0 Score Range
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