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Understanding Probability Theory: Bernoulli, Binomial, Geometric, & Poisson Distributions, Study notes of Statistics

An introduction to probability theory, focusing on bernoulli, binomial, geometric, and poisson distributions. Students will learn how to build models, compute probabilities, and understand the physical phenomena these distributions represent. Commonly used probability models are discussed, including their names, parameters, and applications.

What you will learn

  • What physical phenomena are modeled by Bernoulli, Binomial, Geometric, and Poisson distributions?
  • How do you compute probabilities for a given model using these distributions?
  • What is the difference between Bernoulli, Binomial, Geometric, and Poisson distributions?

Typology: Study notes

2021/2022

Uploaded on 09/12/2022

wilbur
wilbur 🇺🇸

212 documents

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bg1
we do 4things in this class
Build models
counting when all elements of discrete
sample space are equally likely
conditional events
any gtx othat is piecewisecontinnons with
finite integra
common pdfs and pints
Compute probabilities for agiven model
Axioms of probability
pmf pdf cdf
Learn
Bayes Rule
compute summary statistics
expected value variance moments
pf3
pf4

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Download Understanding Probability Theory: Bernoulli, Binomial, Geometric, & Poisson Distributions and more Study notes Statistics in PDF only on Docsity!

we do 4 things in this class

Build models

counting

when all^ elements^ of^ discrete

sample space^ are equally likely

conditional events

any gtx^

o that is^ piecewise

continnons with finite integra

common pdfs and^ pints

Compute probabilities^

for a^ given model

Axioms of probability

pmf pdf cdf

Learn

Bayes Rule compute summary^

statistics

expected value^ variance moments

Commonly used^ probability^

models Chapter

3.5 (^) and (^) 4. There are^ some^ pints^ and

pdfs for^

discrete and continuous^ RVs^ that^

appear

over and^ over To (^) make it^ easier^ to (^) communicate about^ them

they're given^

a name Many are also^ easily described by

one or^ two^

parameters so^ specifying the^ entire

probability

model only requires specifying

the name and (^) the parameters

These RVs^ appear^

over and^ over^ because (^) they are

reasonably

accurate models^ for^ many physical

phenomenon

Discrete pmfs

Continuous (^) pdfs

Bernoulli p

Gaussian

μ o Binomial (^) Mp

Exponential

2 Geometric p^ Uniform (^) a b Uniform Ca^ b^

Rayleigh

Poisson a (^) Cauchy Zipf s

negative

binomial Ise can^ be^ looked^ up^ BUT (^) you'll need^ to

know woe they

arise what physical phenomenon

and how to^ interpret and^ apply what^ you find

Applications

and distinctions^ for^ Bernoulli

Binomial Geometric^

and Poisson^ Rbs

Bernoulli

send a^ packet is^ the^ packet^

received

does a^ chip have^

a defect

Binomial

send N^ packets^ How many packets received out of^ N

chips how^

many

have (^) defects Geometric

send a^ packet repeatedly

until it's^ received How many

times do

you send (^) the (^) packet test (^) chips until^ you find a^ defective^ one How

many

chips do^ you test

Poisson

send

many

N packets

with a^ small^

chance

of loss How^ many

packets

received out of^ many N (^) chips with^

a small^ p

chance of defeat^ how^ many^

have a^ defect

also useful to measure^ things

in a^ time

period or in^ a spatial region In all^ cases^ think^ carefully

about the

underlying event (^) A and the (^) meaning of p P^ A^ and of^ the^ variable^ X