Poisson distribution - Study guides, Class notes & Summaries
Looking for the best study guides, study notes and summaries about Poisson distribution? On this page you'll find 419 study documents about Poisson distribution.
Page 4 out of 419 results
Sort by
-
ISYE 6414 – Final Exam with Correct Answers 2023
- Exam (elaborations) • 22 pages • 2023
- Available in package deal
-
- $10.99
- + learn more
Logistic Regression - Commonly used for modeling binary response data. The response variable is a binary variable, and thus, not normally distributed. 
 
In logistic regression, we model the probability of a success, not the response variable. In this model, we do not have an error term 
 
g-function - We link the probability of success to the predicting variables using the g link function. The g function is the s-shape function that models the probability of success with respect to the predict...
-
MATH302 Week 3 Test
- Exam (elaborations) • 9 pages • 2023
-
- $30.48
- + learn more
1.	Question: A coin is flipped 30 times. What is the probability of getting 15 or more heads? Round answer to 4 decimal places. 
2.	Question: It is known that 50% of adult workers have a high school diploma. If a random sample of 8 adult workers is selected, what is the probability that less than 6 of them have a high school diploma? 
3.	Question: If random variable X has a binomial distribution with n=9 and P(success) =p= 0.4, find the standard deviation of X. 
4.	Question: If random variable X...
-
ISYE 6414 Final Exam Questions and Answers Already Graded A
- Exam (elaborations) • 6 pages • 2023
- Available in package deal
-
- $9.99
- + learn more
ISYE 6414 Final Exam Questions and Answers Already Graded A 
1. If there are variables that need to be used to control the bias selection in the model, they should forced to be in the model and not being part of the variable selection process. True 
2. Penalization in linear regression models means penalizing for complex models, that is, models with a large number of predictors. True 
3. Elastic net regression uses both penalties of the ridge and lasso regression and hence combines the benefits ...
-
MATH302 Week 3 Knowledge Check Homework Practice Questions
- Exam (elaborations) • 14 pages • 2023
- Available in package deal
-
- $34.99
- + learn more
1.	Question: Suppose a random variable, x, arises from a binomial experiment. If n = 14, and p = 0.13, find the standard deviation. Round answer to 4 decimal places. 
2.	Question: A coin is flipped 30 times. Find σ². Round to 1 decimal place. 
3.	Question: It is known that 50% of adult workers have a high school diploma. If a random sample of 6 adult workers is selected, what is the probability that 3 or more of them have a high school diploma? 
4.	Question: Suppose a random variable, x, arise...
-
ISYE 6501 Final EXAM LATEST EDITION 2024 SOLUTION 100% CORRECT GUARANTEED GRADE A+
- Exam (elaborations) • 13 pages • 2023
-
- $10.89
- + learn more
Factor Based Models 
classification, clustering, regression. Implicitly assumed that we have a lot of factors in the final model 
Why limit number of factors in a model? 2 reasons 
overfitting: when # of factors is close to or larger than # of data points. Model may fit too closely to random effects 
simplicity: simple models are usually better 
Classical variable selection approaches 
1. Forward selection 
2. Backwards elimination 
3. Stepwise regression 
greedy algorithms 
Backward elimination...
Make study stress less painful
-
OCR 2023 GCE FURTHER MATHEMATICS B MEI Y422/01: STATISTICS MAJOR A LEVEL QUESTION PAPER & MARK SCHEME (MERGED)
- Exam (elaborations) • 62 pages • 2024
- Available in package deal
-
- $9.49
- + learn more
1 A website simulates the outcome of throwing four fair dice. Ten thousand people take part in a 
challenge using the website in which they have one attempt at getting four sixes in the four throws 
of the dice. The number of people who succeed in getting four sixes is denoted by the random 
variable X. 
(a) Show that, for each person, the probability that the person gets four sixes is equal to 1 
. [1] 
(b) Explain why you could use either a binomial distribution or a Poisson distribution to mo...
-
AQA A LEVEL FURTHER MATHEMATICS 7367/3S PAPER 3 STATISTICS VERSION 1.0 FINAL QUESTIONS WITH MERGED ANSWERS |JUNE 2023
- Exam (elaborations) • 31 pages • 2024
-
- $8.49
- + learn more
The discrete random variable A takes only the values 0, 2 and 4, and has cumulative 
distribution function F(a) ¼ P(A a) 
a 0 2 4 
F(a) 0.2 0.6 1 
Find P(A ¼ 2) 
Circle your answer. 
[1 mark] 
0 0.4 0.6 0.8 
2 The time, T days, between rain showers in a city in autumn can be modelled by an 
exponential distribution with mean 1.25 
Find the distribution of the number of rain showers per day in the city. 
Tick (3) one box. 
[1 mark] 
Distribution Mean 
Exponential 0.8 
Exponential 1.25 
Poisso...
-
ISYE 6501 Final exam questions and answers
- Exam (elaborations) • 14 pages • 2024
-
- $14.49
- + learn more
Factor Based Models 
classification, clustering, regression. Implicitly assumed that we have a lot of factors in the final model 
 
 
Why limit number of factors in a model? 2 reasons 
overfitting: when # of factors is close to or larger than # of data points. Model may fit too closely to random effects 
 
simplicity: simple models are usually better 
 
 
 
 
Brainpower 
Read More 
Previous 
Play 
Next 
Rewind 10 seconds 
Move forward 10 seconds 
Unmute 
0:01 
/ 
0:15 
Full screen 
Classical var...
-
Actuary Exam 1: 2 of 3 Questions & Answers 2023/2024
- Exam (elaborations) • 13 pages • 2023
-
- $9.49
- + learn more
Actuary Exam 1: 2 of 3 Questions & Answers 2023/2024 
 
 
What distribution would you use? Number of insurance claims during a given time period. - ANSWER-Poisson 
 
What distribution would you use? Number of deaths per year from a given group of people. - ANSWER-Poisson 
 
What distribution would you use? Number of mail pieces recieved in a day? Or number of phone calls recieved in a hour? - ANSWER-Poisson 
 
What distribution would you use: Suppose on average that a web page gets 2 hits per mi...
-
ISYE 6501 Midterm 2 Part 1 Latest 2023 Rated A
- Exam (elaborations) • 7 pages • 2023
- Available in package deal
-
- $9.99
- + learn more
ISYE 6501 Midterm 2 Part 1 Latest 2023 Rated A greedy algorithm at each step, the algorithm does the thing that looks best without taking future options into consideration; more classical 
variable selection methods stepwise - (forward, backward, combination) lasso elastic net 
available metrics for variable selection criteria p-value r2 AIC / BIC 
lasso Giving regression a budget to use on coefficients which it uses on most important coefficients Have to scale first 
elastic net constrain combi...
Study stress? For sellers on Stuvia, these are actually golden times. KA-CHING! Earn from your study resources too and start uploading now. Discover all about earning on Stuvia