Lecture11_Chapter3

Lecture11_Chapter3 - Lecture 11 Chapter 3 Wednesday,...

Info iconThis preview shows pages 1–14. Sign up to view the full content.

View Full Document Right Arrow Icon
Lecture 11 – Chapter 3 Wednesday, October 1 st
Background image of page 1

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

View Full DocumentRight Arrow Icon
Probability distribution ± The probability distribution or probability mass function (pmf) of a discrete random variable is defined as a rule that assigns probability to all possible outcomes of the random variable by ( ) ( ) px PX x = =
Background image of page 2
Example ± Find the probability distribution for the outcome of a toss of a coin
Background image of page 3

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

View Full DocumentRight Arrow Icon
Example ± Find the probability distribution for the outcome of a roll of a die
Background image of page 4
Example ± Let X be the number of heads when we toss a coin 3 times. Find the probability distribution of X.
Background image of page 5

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

View Full DocumentRight Arrow Icon
Draw pictures of the pmf’s found in the previous 3 examples
Background image of page 6
Parameter ± There are cases that the probability distribution depends on a quantity that can be assigned any possible value. Such a quantity is called a parameter , of the distribution. A different value for the parameter gives a different probability distribution and all those probability distributions constitute a
Background image of page 7

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

View Full DocumentRight Arrow Icon
Background image of page 8
Background image of page 9

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

View Full DocumentRight Arrow Icon
Background image of page 10
Background image of page 11

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

View Full DocumentRight Arrow Icon
Background image of page 12
Background image of page 13

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

View Full DocumentRight Arrow Icon
Background image of page 14
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 09/23/2009 for the course STAT 318 taught by Professor Staff during the Fall '08 term at Penn State.

Page1 / 14

Lecture11_Chapter3 - Lecture 11 Chapter 3 Wednesday,...

This preview shows document pages 1 - 14. Sign up to view the full document.

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