odds

1. Comparing odds (random)

Hello to everybody, I would like to ask how to compare the odds (the random responding). Let's image the situation of the test where are two types of events - target and non-target. Person need to respond to target event and must not respond to non-target events. Target events are occurring...
2. Developing a 64 Card Poker Deck Variant - Curious About Probabilities

Straight Variant: The only difference is that the top rank can bridge the 1st rank to form a sequence. Think of it as if Q, K, A, 2, 3 was a legal straight. How is that calculated? A More Complex Straight Variant: This one gets trickier, I think. In this variant, there are: 64 cards 4 suits 13...
3. Nonlinear odds-to-probs conversion

The New England Patriots are playing the Buffalo Bills. The fractional odds are Patriots 1/2 and the Bills 2/1, where a bet on the Patriots risks $2 to win$1, and a bet on the Bills risks $1 to win$2. A rational bettor has $1 to bet. A$1 wager on the favorite Patriots yields a \$0.50 profit...
4. Statistic software to calculate this?

Hello everyone. This is a difficult post... take your time to read please, and I am sorry if I have not explained myself very well I would like to calculate the average frequency of an event in a tennis match: For example, let's say that Rodger Federer in the most of the tennis...
5. test of logistic regression constant

Hello, everyone! I wonder whether anyone knows how can i intepret a coefficient of constant in logistic regression. I have used "logistic" in stata, so i got oddsratios. My constant is eqiual .0441026** Please help ! i googled it , but did not find anything.
6. Betting Statistics - Calculation of odds accuracy - what am I measuring here?

Hello folks! Before anything, an important disclaimer: I am an amateur at statistics and I’m trying to learn by my own. Please bear with me if the questions below sounds like utter nonsense to you guys: In an experiment where you have Team A playing a game of any sports against Team B, both...
7. Random Odds and Percentage Question

Hi Everyone, I have a random question related to odds and percentage that I can't figure out. Does this statement in terms of the percentage difference sound true? "The odds for students in group A to graduate are 5.03 (11,734 group A students graduate and 2330 do not) and the odds for...

Suppose you have a FIVE sided dice. One of the sides has a star on it, the other four sides are blank. Suppose you rolled it 10 times. What are the odds that you would roll the star 4 out of the 10 times? can't figure this out, thank you so much!
9. Soccer betting probability, risk and odds question - help

Hello, Consider two different cases of soccer betting. 1) The first consists of 32 different sets of matches (each consisting of 5 matches with different odds of their own). Some of the individual matches (of 5 matches) in the sets can be the same with another set from time to time, but...
10. Standard deviation of a set of random odds

Standard deviation of a set of random probabilities Imagine I have n mutually exclusive events whose probabilities are perfectly random. The sum of their probabilities is 1 of course. What is their most likely standard deviation, if there is one? Playing around with R, it looks like there is...
11. Logistic Regression Problem - HELP!

A local health clinic sent fliers to its clients to encourage everyone, but especially older persons at high risk of complications, to get a flue shot in time for protection against an expected flu epidemic. In a pilot follow-up study, 160 clients were randomly selected and asked whether they...
12. Odds of winning a race given the odds of each runner beating each opponent?

Hi, Say we have three runners: A, B and C, and we have the probability of each runner beating each individual opponent: A before B: 0.68 A before C: 0.42 B before A: 0.32 B before C: 0.30 C before A: 0.58 C before B: 0.70 Of course, the probability of A before B is = 1 -...
13. How to test if the odds of success are significantly different from zero

Hi all, Suppose I have a model below (in R): glmer(Y~X + (1|subject), family="binomial", data=dat) Where Y is the binary outcome variable and X is the sole predictor variable with 6 levels. The results of the regression test is below. The intercept is the log odds of success for the...
14. Odds of a certain 5 character string occurring in a random string of 512.

I work in security and recently had a false positive happen where a certain word that was being tested occurred in the session id. Matching is not case sensitive. The character ranges that can be used in the session id: 0-9, A-Z, a-z, +, /. (no comma or period) The security check was...
15. odds ratio to proability

Let's say I have an odds ratio from logistic regression that's 1.4:1 for males:females. How can I get probabilities back out of this? The formula for odds ratio is \frac{\frac{p_1}{1-p_1}}{\frac{p_2}{1-p_2}}
16. Game Theory Question

Hello gurus, I got involved in a debate with my sister this evening, and despite (what I thought) was a relatively simple problem, I couldn't provide a rigorous answer. I was hoping that someone on here could give me some insight. A casino she frequents will often give her "fake money" to...
17. Odds ratio calculation

Hey guys. I've been doing some work during the holidays and there's one thing I've been having trouble with. I'm doing a personal study comparing social survey answers between two different countries to make a comparative analysis on religions effect on education. To compare, I need to do...
18. Recurring Event, Probability of Totals

Hi. I'm actually not working on homework, but trying to make odds tables for a card game called Summoner Wars to practice/learn math for fun. It's a typical dice battle game, where various characters roll varying amounts of dice to attack. For each die, if they role a 3, 4, 5, or 6, it...