# Discrete Probability Distributions

### Description

Statistics Mind Map on Discrete Probability Distributions, created by alistairewart on 10/20/2013.
Mind Map by alistairewart, updated more than 1 year ago
 Created by alistairewart almost 9 years ago
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## Resource summary

Discrete Probability Distributions
1. Binomial Distribution
1. Example

Annotations:

• Historical sales record that 40 percent of all customers who enter store make a purchase. What is the probability that two of the next three customers will make a purchase?
1. how we know it's binomial
1. 1) identical trials
1. 2) TWO outcomes are possible in each trial
1. 3) probability stays constant
1. 4) all trial outcomes are independent
2. Sample Outcome Space

Annotations:

• SSS    SSF SFS FSS FFS FSF SFF FFF
1. We know there are 8
2. Note
1. 1

Annotations:

• the 3 in this expression is the number of sample space out comes (ssf, sfs, and fss) that correspond to the EVENT "two of the next three customers make purchases.
1. 2

Annotations:

• .4 = p .6= q  is the probability that the customer does not make a purchase
2. Calculation
2. Definitions
1. trials
1. success and failure

Annotations:

• (p)= success (f) = failure
1. sample space outcomes
2. Formulas
1. number of ways to arrange x successes among n trials
1. Binomial Probability
2. Rules
1. not mutually Exclusive
1. Mutually Exclusive
2. Compliment Rule

Annotations:

• If A is the event... A Compliment is the event in which it will NOT occur.
3. Mean/ Variance/ SD

### Similar

Statistics Key Words
SAMPLING
CUMULATIVE FREQUENCY DIAGRAMS
HISTOGRAMS
FREQUENCY TABLES: MODE, MEDIAN AND MEAN
TYPES OF DATA
GROUPED DATA FREQUENCY TABLES: MODAL CLASS AND ESTIMATE OF MEAN
Statistics Vocab
chapter 1,2 statistics
Statistics, Data and Area (Semester 2 Exam)
Chapter 7: Investigating Data