'Maximum entry' diaporamas de présentation

Jim Demmel and Oded Schwartz

CS294, Lecture #5 Fall, 2011 Communication-Avoiding Algorithms www.cs.berkeley.edu/~odedsc/CS294. Communication Avoiding Algorithms for Dense Linear Algebra: LU, QR, and Cholesky decompositions and Sparse Cholesky decompositions. Jim Demmel and Oded Schwartz. Based on:

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Section 2.5

Section 2.5. Measures of Position. Section 2.5 Objectives. Determine the quartiles of a data set Determine the interquartile range of a data set Create a box-and-whisker plot Interpret other fractiles such as percentiles Determine and interpret the standard score ( z- score). Quartiles.

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Warm Up

Warm Up. Problem 1 (Multiple Choice) Four friends take an IQ test. Their scores are 96, 100, 106, 114. Which of the following statements is true? I. The mean is 103. II. The mean is 104. III. The median is 100. IV. The median is 106.

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Descriptive Statistics

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