Summary_01&amp;02

# Summary_01&amp;02 - Chapter 1 Sampling and Descriptive...

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Chapter 1. Sampling and Descriptive Statistics

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1.1 Sampling Definitions: Population Sample Simple Random Sample (SRS) Conceptual population Independence Numerical or quantitative Categorical or qualitative
1.2 Summary Statistics Sample Mean : Sample Variance : Sample standard deviation is the square root of the sample variance. If X 1 , …, X n is a sample, and Y i = a + b X i , where a and b are constants, then If X 1 , …, X n is a sample, and Y i = a + b X i , where a and b are constants, then Definitions : median, mode, range, quartile, and percentile. 1 1 n i i X X n = = ( 29 2 2 2 2 1 1 1 1 1 1 n n i i i i s X X X nX n n = = = - = - - - . Y a bX = + 2 2 2 , and . y x y x s b s s b s = =

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1.3 Graphical Summaries Stem-and-leaf plot Dotplot Histogram Boxplot Scatterplot
Chapter 2. Probability

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2.1 Basic Ideas Definitions : experiment, sample space, event, union, intersection, complement, mutually exclusive. Probability of event A : Axioms of Probability P ( A C ) = 1 – P ( A ) If A is an event, and A = { O
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Summary_01&amp;02 - Chapter 1 Sampling and Descriptive...

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