conditional probability

  1. A

    Conditional Probability of several events

    Hallo Everyone, I have a question in Conditional Probability and I would appreciate if you could help me solve it. I have the probability of of the Hourly temperature of the day. if my temperature varies from -3,-2,-1,0.....+9 and I know the probability for each temp. every hour through the day...
  2. T

    Conditional Probability

    Can any one explain how to solve this problem please?? A three day festival is being planned to be held in a location with the following weather characteristics: The probability of rain on any given day is 0.14. If it rains on a particular day then the probability that it also rains on the next...
  3. G

    Conditional Probability Help

    Hello everyone. I was hoping I could ask for a little help with implementation of the conditional probability formula. To start, I know nothing or very little about stats so my notation and ability to write smart about this is a little on the embarrassing side..... But first, let me provide you...
  4. G

    Conditional Probability Help

    Hello everyone. I was hoping I could ask for a little help with implementation of the conditional probability formula. To start, I know nothing or very little about stats so my notation and ability to write smart about this is a little on the embarrassing side..... But first, let me provide you...
  5. R

    Conditional probability with an uncertain conditional event

    I posted this probability question on the mathematics stackexchange last year and am still awaiting an answer, so I'm reaching out here to see if somebody can help. Thanks in advance. https://math.stackexchange.com/questions/2896723/conditional-probability-with-an-uncertain-conditional-event
  6. M

    Transportation network probability

    I need a hlep because i didnt understand the course so If someone can help me for thi thank you very much
  7. N

    Conditional Probability Problem Help!

    Hey guys, I got this question as a practice problem. I believe that it's a conditional probability where I should find the probability of NOT selecting one-half gallon carton. Can someone confirm if there is a typo in this question/is it solvable? Because it doesn't state the sample size to...
  8. B

    Probability Homework problem

    My 7-grade daughter brought this problem home today and having trouble figuring it out. Each box contains a pen with one of four colors, equally likely. Each box is independent. After opening N (N=4) boxes, what is probability you have a full set (all 4 colors)? My daughter came up with...
  9. A

    Conditional probability of functions. Small question

    Hey, i was just looking at a question where the question is calculate: P( B(t) =< x| x=B(s) ). That is, calculate the probability that B(t) is less than or equal to x given that x is equal to B(s). Here B(t) is a brownian motion, but my question is not related to this. I understand the...
  10. S

    Combination of families of fragility curves (cumulative probability functions)

    Hi guys, I am a geotechnical engineer and currently involved in a project for risk calculation of an embankment dam. It's my first post here, I am still novice to probability theory and statistics. I hope I will explain well what my problem is and I'll be glad if you can give me advices. Sorry...
  11. B

    Probability calculation of events that are related in a non-standard form.

    This should be a simple enough problem, but I find it to be a bit tricky. I am curious what the forums suggestions will be.. Look at the attached diagram. I have the red curve, for which I have associated probabilities at each point, i.e. I know what P(x) and P(y) are numerically. Typical...
  12. X

    joint probability with conditional

    Hello, What is P(A|B, C)? I have a dataset and I want to estimate the mutual information of A|B and C. The formula for mutual information is Sum_A|B Sum_C p(a|b, c) log( p(a|b, c) / p(a|b) p(b) ) da db I'm looking for a formula for p(a|b, c) Many thanks in advance Xavier
  13. M

    Conditional Probability?

    What is the probability on a single roll of a pair of dice, that the sum is 6, given that at least one die came up 1? I'm thinking that there are 11 ways to roll the pair with a 1 on at least one die. Of those 11 ways 2 sum to 6 (1&5, 5&1), so my answer is 2/11 Is this correct?
  14. A

    Multiple Criteria, non-binary outcomes

    So, I'm trying to predict outcomes using baseball data. What I want to do is predict the outcome of batted balls based on the following criteria: Pitcher: 50% groundballs allowed, 20% line drives allowed, 25% flyballs allowed, 5% popups allowed. Batter: 40% groundballs hit, 15% line drives...
  15. S

    Poker Club Probability of Winning Question

    I need some help. I'm looking for how to calculate the odds\probability of a person winning in a poker club based on events that have already happened and the games left. Attached is the current standings. The winner of the club is determined by the lowest overall points. Points are...
  16. J

    Probability GIVEN I already know some event has occurred

    I ask 14 people to buy something, 2 say yes, 12 say no. Given this happened, what is the probability that the next person I ask will buy something? So that would make it 3 yes, 12 no, 15 total. Alternatively, what if I ask 14 people, 0 people buy. What is the probability that the next...
  17. G

    Problem in Bayes' Theorem/ Conditional Probability

    Hi everyone ! I'm new to this site and this is my first post. This is a problem I found in my Stats textbook under the Bayes Theorem section. Here's the problem: Three urns of the same appearance have the following proportion of balls. First urn: 2 Black 1 White Second urn:1 Black 2...
  18. C

    Probability Question (Ambiguous)

    SOLVED BY MYSELF, YOU CAN CLOSE THE THREAD :) Hi guys, I'm new to this forum, and some of you might find it annoying that I post a question straight off, but the assignment is due tomorrow and I have two different answers. I do promise to keep posting in threads (when I have something to say)...
  19. Y

    Difference between p(y=0|x=0) and p(x=0,y=0)

    Another Trivial question: I have been asked to calculate the joint probability i.e. p(X=0,Y=0) and i have been provided by P(Y=0|X=0), is it the same?
  20. S

    Conditional probabilities when trading options and forecasting

    Dear Statistics-Gurus, I am trying to figure out how to "combine" two dependent probabilities, namely the probability to forecast the market direction wrong P(wrongFC)=35% and the probability of an option to be in-the-money ITM (only if the option is ITM I am losing money). The option can...