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Forum: Probability

Probability course and homework discussion. Probability distributions. Probability theory, stochastic processes

  1. Arrow Sticky Thread Sticky: We only provide homework help to those who show effort

    Welcome to Talk Stats Forum. In order to keep homework help effective and efficient, we request all members to abide by these guidelines: 1)...

    Started by quark‎, 09-30-2005 09:44 AM
    • Replies: 0
    • Views: 30,199
    09-30-2005, 09:44 AM Go to last post
  1. Bayesian probability question about Dirichlet prior distributions

    Hi there, I have a question about Bayesian probability. I have a list of the starting times of journeys. I binned the data into 15 minute...

    Started by bradyj2‎, 10-15-2012 12:03 PM
    • Replies: 2
    • Views: 1,688
    10-16-2012, 03:38 AM Go to last post
  2. Bayesian serial chain

    I am trying to understand Bayesian networks and particularly causal (serial) chains. It is defined as P(C|A&B) = P(C|B).This means that the...

    Started by anuket‎, 01-23-2016 01:06 PM
    • Replies: 0
    • Views: 1,424
    01-23-2016, 01:06 PM Go to last post
  3. Bayesian Statistics

    A logistic regression model for a binary outcome Y given x is given by P(Y=1) = exp(a +bx)/(1+exp(a+bx)) Assume a prior distribution f(a,b)...

    Started by MaxMan‎, 11-26-2011 08:25 PM
    • Replies: 3
    • Views: 1,865
    11-29-2011, 02:44 PM Go to last post
  4. bayesian statistics

    I have a large amount of data, given totals for every hour over a year period for the following columns: # of Jams Jam event time in minutes # of...

    Started by bigshottkyd‎, 12-01-2015 01:23 PM
    bayes, bayesian, probability, regression
    • Replies: 0
    • Views: 1,230
    12-01-2015, 01:23 PM Go to last post
  5. Bayesian updating over multiple distributions

    Say I believe a basketball player's likelihood distribution of making a shot is affected by his distance from the hoop, how well he is being...

    Started by statsanimal‎, 01-17-2012 06:10 PM
    • Replies: 14
    • Views: 3,198
    01-22-2012, 04:00 PM Go to last post
  6. Bayesian vs. Frequentist

    Hi, I am a college student who has taken a course in frequentist probility learned a little bit of Bayesian probability. I don't know enough to...

    Started by whomp‎, 05-06-2012 04:01 PM
    • Replies: 8
    • Views: 4,457
    07-03-2012, 03:43 PM Go to last post
  7. Beating the odds

    The mortality tables give person 'A' 5 more years to live. He/she dies after 7. The tables give a person more years to live the longer that...

    Started by Outlier‎, 11-07-2011 12:47 PM
    • Replies: 0
    • Views: 1,816
    11-07-2011, 12:47 PM Go to last post
  8. Beauty Shop problem

    Alice and Betty enter a beauty parlor simultaneously, Alice to get a manicure and Betty to get a haircut. Suppose the time for a manicure(haircut) is...

    Started by freebird2008‎, 03-22-2009 02:13 PM
    • Replies: 0
    • Views: 3,946
    03-22-2009, 02:13 PM Go to last post
  9. Beginner for Probability

    I'm taking a statistics class that's covering probability. I'm having problems with some of my homework. I was hoping somebody could tell me what...

    Started by spum‎, 06-30-2008 09:03 PM
    • Replies: 0
    • Views: 3,236
    06-30-2008, 09:03 PM Go to last post
  10. Beginner help with unconscious statistician

    I should really know this, but i get stuck at some differentiation. So X is a R.V. with p.d.f. f_x(x), and Y=aX+b. We want to find f_y(y). So i...

    Started by Prometheus‎, 03-30-2013 10:31 AM
    • Replies: 2
    • Views: 1,831
    03-30-2013, 04:41 PM Go to last post
  11. Beginning and end of rainy season. How to?

    Hi all, This is a beginner's question, I apologize for that. I have taken Descriptive Statistics and I am on my why to Probability and later...

    Started by yaraeovento‎, 11-08-2014 11:08 AM
    beginner, seasonal, seasonality
    • Replies: 2
    • Views: 1,405
    11-08-2014, 12:54 PM Go to last post
  12. Beginning Bayes problem

    I'm getting about every other question right, and since the back of the book only has answers, not whole solutions, I can't tell what I'm doing...

    Started by Turbowaffle‎, 09-27-2006 12:18 PM
    • Replies: 1
    • Views: 11,621
    09-27-2006, 06:24 PM Go to last post
  13. Bejeweled Combos

    Hi all, Many of you I assume are familiar with Bejeweled, a puzzle game in which the player swaps neighboring, colored gems in an 8 x 8 grid to...

    Started by ajile‎, 07-16-2010 10:41 AM
    • Replies: 2
    • Views: 4,033
    07-16-2010, 12:08 PM Go to last post
  14. Benford's Law and U.S. States

    Can Benford's law apply to the population of the 50 U.S. states? Is the sample size adequate to make this work? If so, what does it show? Curious...

    Started by jerseydan‎, 02-12-2010 11:16 PM
    • Replies: 1
    • Views: 2,928
    02-13-2010, 12:00 AM Go to last post
  15. Bernoulli / Geometric Distribution Question

    This is a question that is on a study-guide for a test I have coming up, and I'm completely lost. I was sick when we covered Bernoulli's experiments...

    Started by porcelain.parachutes‎, 11-17-2010 12:15 AM
    • Replies: 1
    • Views: 4,554
    11-17-2010, 01:15 AM Go to last post
  16. Bernoulli distribution and PGF

    let Yi,j be independent Bernoulli random variables with E = 1/j. Let Zj = sumYi,j for i=1 to j . Let MZj(s) be the probability generating function...

    Started by aytajalli‎, 02-10-2015 06:11 PM
    • Replies: 6
    • Views: 2,314
    02-12-2015, 01:37 PM Go to last post
  17. Bernoulli Principle

    I'm sorry this question is vague, but can anyone explain the basic equation and steps used for the Bernoulli Principle? I understand the equation: ...

    Started by kateisgo‎, 05-21-2006 08:21 PM
    • Replies: 1
    • Views: 2,574
    05-21-2006, 09:26 PM Go to last post
  18. Bernoulli Random variable and population problems - i need it for an exam

    Let Ya and Yb denote Bernoulli random variables from 2 different populations, denoted a and b. suppose that E (Ya)= Pa and E (Yb) = Pb. A random...

    Started by homalina‎, 09-22-2012 03:29 PM
    • Replies: 1
    • Views: 3,721
    09-22-2012, 03:34 PM Go to last post
  19. Bernoulli Trials

    Background: I play a game in which a lot of things are determined by random events. Many things work like simple Bernoulli trials (you make an...

    Started by fissile‎, 03-14-2013 02:14 PM
    • Replies: 1
    • Views: 1,912
    03-14-2013, 03:14 PM Go to last post
  20. best ebook for daily life probability problems

    Hi, can any one tell me please best ebook for daily life problems of probability.I have done a search but not found yet...

    Started by sara b‎, 01-17-2014 11:28 PM
    • Replies: 4
    • Views: 1,549
    01-20-2014, 04:14 PM Go to last post
  21. best forecast

    hi, i have been solving this question and my result is different than the results i have been given to compare to. can u please tell me if i am...

    Started by zhenyazh‎, 01-24-2010 04:26 AM
    • Replies: 1
    • Views: 3,212
    01-27-2010, 08:53 AM Go to last post
  22. Best To Draw First Or Last?

    Hi, newbie non mathematician looking for an answer to a long debated question in angling. When fishing a competition we draw a random number (say...

    Started by Neil of the Nene‎, 01-19-2016 05:47 AM
    • Replies: 5
    • Views: 1,963
    01-20-2016, 01:46 PM Go to last post
  23. Best unbiased estimator of a function of a estimator

    Hi, I'm having a small problem with the following problem: From the factorization theorem I know that \max{X_i}=X_{(n)} is a sufficient...

    Started by Tosha‎, 07-15-2013 08:52 AM
    • Replies: 2
    • Views: 1,735
    07-15-2013, 10:29 AM Go to last post
  24. beta-binomial for repeated discriminative test

    Hi everybody. I need advice on repeated discriminative test. It is a similarity test, i.e. I am interested in determinig that two items are...

    Started by robcap‎, 02-06-2008 10:59 PM
    • Replies: 0
    • Views: 2,685
    02-06-2008, 10:59 PM Go to last post
  25. bias coin density question

    if the density function of a bias coin is x-x^2 between 0-1. and z=0 is probability of bias coin fall on tail, z=1 is on its head, then whats...

    Started by pzhao‎, 11-13-2013 11:30 AM
    • Replies: 2
    • Views: 1,732
    11-13-2013, 08:29 PM Go to last post
  26. Bias of ratio estimator of pop.mean, DOUBLE POST

    I need to explain why the ratio estimator of the population mean is biased or unbiased. I am fairly certain that it is a biased estimator but I don't...

    Started by alias‎, 03-05-2012 12:29 AM
    • Replies: 0
    • Views: 2,295
    03-05-2012, 12:29 AM Go to last post
  27. Bias, Unbias, and MSE

    Hello everyone! I am new here, this is my first post so I hope this is the right area to post this in rather than the statistics section. ...

    Started by spunkiimonkii7078‎, 02-25-2013 09:52 PM
    • Replies: 0
    • Views: 1,120
    02-25-2013, 09:52 PM Go to last post
  28. Biased Coin and Conditional Probability

    Here's another question that I'm trying to work the kinks out of. Consider a biased coin with the probability of getting heads being p. The coin...

    Started by tom86‎, 10-04-2009 05:15 PM
    • Replies: 1
    • Views: 8,496
    10-04-2009, 06:53 PM Go to last post
  29. bidding probability

    Hi. I am not overly familiar with statistics. I am preparing a manuscript and I need a formula to determine probability. Here is the problem. ...

    Started by andyploom‎, 03-14-2011 02:45 PM
    • Replies: 0
    • Views: 2,826
    03-14-2011, 02:45 PM Go to last post
  30. Question Bidding question - (Uniform Probability Distribution)

    Suppose you are interested in bidding on a piece of land and we know one other bidder is interested. The seller announced that the highest bid in...

    Started by Parillamaster‎, 02-14-2006 10:40 AM
    • Replies: 4
    • Views: 18,924
    02-14-2006, 12:26 PM Go to last post
  31. Bimonial aggregation

    Hi, I'll try to keep this brief. I'm having troubles working with the binomial for a sporting event. Here's a totally simplified and fictional...

    Started by iambasil‎, 04-12-2012 05:21 AM
    • Replies: 5
    • Views: 2,008
    04-12-2012, 09:05 AM Go to last post
  32. Binary Bootstrap

    Is it valid to use a bootstrap technique for estimating variance in a binary (yes/no or 1/0) data set? My motivation for doing so is to perform...

    Started by cmonke‎, 08-15-2009 02:57 PM
    • Replies: 5
    • Views: 7,380
    09-29-2009, 04:01 AM Go to last post
  33. Binary Logistic Regression Event Prob - Minitab

    Good Day To All, I am new to the site and could use a little clarification regarding the following: In Minitab, I have conducted a Step-Wise...

    Started by optomist1‎, 06-25-2010 10:31 AM
    • Replies: 1
    • Views: 4,179
    06-25-2010, 03:00 PM Go to last post
  34. binary sequence statistics

    Hi all, I have a problem. Supose a random sequence: 011000101010101_? I want to find the probability of next number comes 0 or 1. So i want to...

    Started by Bat09‎, 11-15-2013 09:48 AM
    • Replies: 0
    • Views: 1,186
    11-15-2013, 09:48 AM Go to last post
  35. Binary string probability question

    Hi, I'm having trouble figuring out this question. I am quite new to probability at this point. Q: How many binary strings of length 2n have...

    Started by delive‎, 05-24-2009 04:21 PM
    • Replies: 1
    • Views: 3,420
    05-25-2009, 06:08 AM Go to last post
  36. Bingo probability question

    Hello all, I have visited the wizzard of odds to get some answers on bingo probabilities but I have a new version that isn't included on that...

    Started by TERAS‎, 06-02-2010 03:53 AM
    • Replies: 0
    • Views: 3,362
    06-02-2010, 03:53 AM Go to last post
  37. Binomail question

    Can you tell me what I'm doing wrong? If I'm rolling exactly 2 threes in 5 rolls of a fair die, would I not: n!/k! (n-k)! and this would be...

    Started by stacy foreman‎, 11-29-2006 04:14 PM
    • Replies: 2
    • Views: 2,370
    12-04-2006, 04:15 PM Go to last post
  38. Binomial

    The proportion of individuals who favor Party A in the population is 55%. How large must a sample be in order to ensure that 99% of the sample favors...

    Started by jamesmartinn‎, 02-19-2009 12:56 AM
    • Replies: 5
    • Views: 2,965
    02-19-2009, 05:40 PM Go to last post
  39. Binomial

    machine has 3 wheels each with 40different numbers, the problem need to find the probabilty of have 3 apples in the case where 1) 3 times in...

    Started by Matt‎, 12-06-2011 09:28 AM
    • Replies: 14
    • Views: 2,805
    12-07-2011, 07:02 AM Go to last post
  40. Binomial + Binomial

    Hi, I'm having difficulty working with the binomial - specifically aggregating binomial distributions. Hoping somebody can tell me where I'm...

    Started by iambasil‎, 04-11-2012 02:41 PM
    binomial, distribution, probability, sport, statistics
    • Replies: 0
    • Views: 923
    04-11-2012, 02:41 PM Go to last post
  41. Question Binomial and exponential distribution?

    Hi everyone. Could you help me with these two following problems: 1. A machine normally makes items of which 4% are defective. Every hour, the...

    Started by koala‎, 12-06-2010 10:30 PM
    • Replies: 1
    • Views: 5,216
    01-25-2011, 04:32 AM Go to last post
  42. binomial distribuion problem

    Estimate the indicted probability by using the normal distribution as an approximation to the binomial distribution. In one county, the conviction...

    Started by jewsvideo‎, 05-14-2009 04:53 AM
    • Replies: 0
    • Views: 4,541
    05-14-2009, 04:53 AM Go to last post
  43. Binomial Distribution

    I am struggling with statistics (now, there's a first!) I am working in binomial distribution and trying to determine probability of rolling a...

    Started by Sully‎, 04-25-2006 10:11 PM
    • Replies: 2
    • Views: 3,082
    04-26-2006, 11:03 PM Go to last post
  44. Binomial distribution

    Can someone explain to me why for a binomial distribution you can't analyze an event that is changing over time?

    Started by lostinspace‎, 07-31-2006 09:10 PM
    • Replies: 1
    • Views: 2,308
    08-02-2006, 09:50 AM Go to last post
  45. binomial distribution

    A "thinking" question I need help with regarding binomial distributions and I have no clue what they mean. Please help!! I can do the problems O.K....

    Started by cmojito‎, 12-29-2007 10:36 PM
    • Replies: 0
    • Views: 3,786
    12-29-2007, 10:36 PM Go to last post
  46. Binomial Distribution

    I just want someone to please verify whether my approach to this problem is correct. The question goes as follows; Use a binomial distribution to...

    Started by Yorick‎, 04-10-2008 02:38 PM
    • Replies: 1
    • Views: 2,328
    04-14-2008, 07:15 PM Go to last post
  47. Binomial Distribution

    Hello everyone, I have the following probability problem and I do not how to do it. A person claims that she is a fortunate teller. She...

    Started by newuser2009‎, 02-24-2009 06:34 PM
    • Replies: 0
    • Views: 2,016
    02-24-2009, 06:34 PM Go to last post
  48. binomial distribution

    If every person tossed a coin 5 times, what is the probability of observing 5 tails if there are 1000 people? i can work out the answer if only...

    Started by Yvonne M‎, 01-10-2010 03:16 PM
    • Replies: 1
    • Views: 2,900
    01-10-2010, 03:49 PM Go to last post
  49. Binomial Distribution

    I really need help with this homework. I've been on one question for over an hour. The Question is The rates of on-time flights for commercial...

    Started by PitaTheGreat‎, 03-05-2012 06:33 PM
    binomial distribution, probability
    • Replies: 9
    • Views: 11,845
    03-05-2012, 07:24 PM Go to last post
  50. Exclamation Binomial Distribution

    A company starts a fund of M dollars from which it pays $1000 to each employee who achieves high performance during the year. The probability of...

    Started by Takumi‎, 02-08-2014 02:08 AM
    binomial distriubtion, probability, statistics
    • Replies: 3
    • Views: 5,689
    02-08-2014, 02:10 PM Go to last post
  51. Binomial distribution ! Need help!

    Hi, plz tell me if method to solve these question is correct or not! q)In a call centre 180 calls are received at random over a period of 12...

    Started by Shashank Prasad‎, 06-28-2014 11:05 AM
    • Replies: 0
    • Views: 4,224
    06-28-2014, 11:05 AM Go to last post
  52. Binomial Distribution - Help

    Solved! Thanks for your feedback!

    Started by skittles‎, 02-12-2014 02:02 PM
    • Replies: 2
    • Views: 917
    02-14-2014, 01:10 AM Go to last post
  53. Binomial Distribution / Consecutive Odds Question

    Hi everyone, Looking to solve a 3 part problem. My answers to the first 2 parts agrees with the textbook answers, but I'm confused by the 3rd...

    Started by jschroeder5‎, 07-18-2013 06:18 PM
    • Replies: 0
    • Views: 5,427
    07-18-2013, 06:18 PM Go to last post
  54. Binomial Distribution Analysis Question

    Hi everyone. I have a couple of questions and would greatly appreciate it if you could help me out! First, I'll provide some information: ...

    Started by Algebrah‎, 10-12-2011 04:51 PM
    • Replies: 4
    • Views: 11,573
    07-07-2012, 12:07 PM Go to last post
  55. Binomial distribution and rolling dice

    I realized this was the homework forum and reposted it in general discussion since mine is not homework.

    Started by XBear‎, 06-17-2016 03:26 PM
    • Replies: 0
    • Views: 1,062
    06-17-2016, 03:26 PM Go to last post
  56. Binomial Distribution as N goes to Infinity

    I know that the Central Limit Theorem says that all types of distributions go to normal distribution as N goes to infinity. However, is there some...

    Started by messianic‎, 07-15-2010 04:38 PM
    • Replies: 6
    • Views: 9,126
    07-15-2010, 07:36 PM Go to last post
  57. Binomial distribution confusion.

    Hello all. I am having a bit of confusion taking the conditional expectation of a binomial cumulative distribution. Lets say the probability of a...

    Started by Salohcin‎, 07-26-2010 01:31 PM
    • Replies: 1
    • Views: 2,991
    07-27-2010, 03:03 AM Go to last post
  58. binomial distribution help

    hey i just need some help with this question: im confused about the formula. find sigma and mu A)the probability distribution of the # of tails...

    Started by skyblue‎, 05-06-2009 09:27 PM
    • Replies: 1
    • Views: 3,748
    05-06-2009, 11:51 PM Go to last post
  59. Exclamation Binomial Distribution help

    Assume that a procedure yields a binomial distribution with a trial repeated n times. Use the binomial probability formula to find the probability of...

    Started by Katze‎, 12-12-2010 01:56 PM
    • Replies: 2
    • Views: 8,456
    12-12-2010, 02:03 PM Go to last post
  60. binomial distribution help / confirmation

    Q: A manufacturer produces 1000 computer chips for a mission-critical application. Each chip costs $100 to manufacture and sells for $2000, but has...

    Started by mal100‎, 09-19-2013 12:03 AM
    • Replies: 1
    • Views: 3,011
    09-29-2013, 05:01 PM Go to last post

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