Odds and odds ratios in logistic regression
I am having difficulties understanding one logistic regression explanation. The logistic regression is between temperature and fish which die or do not die. The slope of a logistic regression is 1.76....
View Article% chance, when the success rate goes up with every failure
In an online game the chance of succeeding at an action starts at 5% and goes up 5% every time the action fails. Upon success the chance resets back to 5%. (So you know how they say a die has no memory...
View ArticleHow to calculate prevalence ratios?
In a reviewer request from a submitted manuscript, they requested that I use prevalence ratios instead of odds ratios. The reviewer says: Using logistic regression when prevalence of outcome is greater...
View ArticleInterpreting odds in a logistic regression
I am having some problems interpreting the odds. I run a logistic regression for an out come ‘Yes’ or ‘no’. My reference category is ‘No’. I have 2 variables and this are the log(odds) and the odds:...
View ArticleOdds of a team winning a sports match given full history
Assumptions: The teams never change The teams don’t improve in skill The entire history of each team’s performance against some subset of other teams is known For example: I have a long list of match...
View ArticleInterpreting Odds Ratios for Natural Log transformed Variables
For those who are using Stata the following command clogit Y X,or would produce the odds ratio from the Conditional logistic regression which is the change in the odds of Y for a unit increase in X....
View ArticleHow to convert sport odds into percentage?
I am wondering how to convert sport odds to the percentage format. There’s this example: Odds for the home team victory: 2.50 Odds for the draw:`3.25 Odds for the away team victory: 3.00 To convert...
View ArticleMean residual lifetime divided by odds of survival?
Is there a name for the mean residual lifetime divided by odds of survival? Does it have an intuitive meaning or interpretation? Example: $P(X={0,1,2,3}) = (0.40, 0.30, 0.2, 0.1)$...
View ArticleWhat are the odds of only winning a lottery once when there is a 1 in 3...
Lottery chance to win is 1 in 3. I have 20 changes. I only win 1. What is the statistical probability of this outcome?
View Articlehow expected innings runs are converted into match odds in cricket
How to convert two teams expected innings runs into match odds and their win probability in cricket. Let’s consider that,I had worked out past records of both the teams and calculated their expected...
View ArticleComparing odds ratios – conditional or unconditional MLE
When comparing log(OR) from two contingency tables using Z-test should I use conditional maximum likelihood estimate of odds ratios (as given by fisher.test in R) or simple unconditional?
View Article
