Summary_01&02

Summary_01&02 - Chapter 1 Sampling and Descriptive...

Info iconThis preview shows pages 1–7. Sign up to view the full content.

View Full Document Right Arrow Icon
Chapter 1. Sampling and Descriptive Statistics
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
1.1 Sampling Definitions: Population Sample Simple Random Sample (SRS) Conceptual population Independence Numerical or quantitative Categorical or qualitative
Background image of page 2
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 = =
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
1.3 Graphical Summaries Stem-and-leaf plot Dotplot Histogram Boxplot Scatterplot
Background image of page 4
Chapter 2. Probability
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
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
Background image of page 6
Image of page 7
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

Page1 / 12

Summary_01&02 - Chapter 1 Sampling and Descriptive...

This preview shows document pages 1 - 7. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online