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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: 30,234
    09-30-2005, 09:44 AM Go to last post
  1. Binomial distribution help plz..

    A multiple-choice test has 6 questions each with 4 responses, one of which is correct. The lowest number of correct answers a student must obtain in...

    Started by salmanwashere‎, 03-14-2009 01:27 PM
    • Replies: 2
    • Views: 3,987
    03-14-2009, 04:15 PM Go to last post
  2. Binomial Distribution in Excel

    7. An emergency room administrator wants to know the proportion of emergency room patients who spend more than one hour waiting to be seen. He has...

    Started by xdayita‎, 03-22-2014 07:26 PM
    • Replies: 1
    • Views: 1,856
    03-24-2014, 03:04 PM Go to last post
  3. Binomial Distribution Problem

    I'm at work, so I don't have the problem verbatim, but it's something like this: Suppose that companies who launch products with revenue growth as...

    Started by Merlik‎, 10-23-2006 08:49 AM
    • Replies: 0
    • Views: 3,305
    10-23-2006, 08:49 AM Go to last post
  4. Binomial Distribution Problem - How to interpret the given information

    Your company is running an audit on the Sleaze Company. Because Sleaze has a bad habit of issuing incorrect invoices, the focus of your audit is on...

    Started by raamaak‎, 02-27-2011 10:50 PM
    • Replies: 5
    • Views: 8,206
    10-04-2011, 01:58 PM Go to last post
  5. Binomial distribution problem.

    I think this is a binomial distribution problem but I just don't know how to solve it. It gets a bit hard when I have to decide which is x, n or p ...

    Started by camilaberas‎, 03-31-2014 11:35 AM
    • Replies: 1
    • Views: 2,736
    03-31-2014, 11:54 AM Go to last post
  6. binomial distribution question

    A currier service receives parcels and forwards them to their destination. The aim is to forward all parcels within 24 hours but is not always...

    Started by craig1234‎, 03-27-2006 05:03 PM
    • Replies: 1
    • Views: 2,718
    03-28-2006, 04:13 PM Go to last post
  7. Post Binomial Distribution Question

    Hey guys, I have a bit of trouble understanding this binomial distribution question According to the call center statistics of a company, on...

    Started by Bill_McCoy‎, 03-05-2015 05:27 AM
    • Replies: 5
    • Views: 1,871
    03-05-2015, 10:43 AM Go to last post
  8. Binomial distribution variace q

    Given a scenario where there is a true statistic - proportion voting yes in a vote denoted by p ,we sample people from the large population, n . ...

    Started by devlin‎, 09-06-2010 04:24 PM
    • Replies: 0
    • Views: 2,192
    09-06-2010, 04:24 PM Go to last post
  9. binomial distribution with random p?

    I haven't much training in statistics or math in general, but I was playing around with a signalling model I'm building, mostly for fun, and ran into...

    Started by AtlasFrysmith‎, 12-08-2008 05:00 PM
    • Replies: 2
    • Views: 3,008
    12-08-2008, 11:42 PM Go to last post
  10. Binomial Distribution, 150 tosses of fair coin, P(40%<= X <=50%)

    Hi, im getting the wrong answer for the following question and not sure why. (Question) A fair coin is tossed 150 times. Find the probability that...

    Started by Hans Rudel‎, 05-10-2012 05:27 AM
    binomial distribution
    • Replies: 2
    • Views: 2,519
    05-10-2012, 07:17 AM Go to last post
  11. Binomial distributions

    A total of 16 mice are sent down a maze, one by one. From previous experience, it is believed that the probability a mouse turns right is .38 a)...

    Started by klsybrns‎, 10-12-2012 01:33 PM
    • Replies: 1
    • Views: 4,440
    10-12-2012, 09:25 PM Go to last post
  12. Binomial Expectation

    I'm having a little problem following this Y~Bin(5,1/3) Find: E = E = 4E - 4E - 1

    Started by jamesmartinn‎, 02-25-2009 11:18 PM
    • Replies: 3
    • Views: 2,716
    02-26-2009, 09:36 AM Go to last post
  13. Binomial expected value

    I think the answer to this is painfully obvious, but I need to be certain. Consider some binomial distribution where the probability of a single...

    Started by Salohcin‎, 09-02-2010 12:04 PM
    • Replies: 1
    • Views: 3,137
    09-02-2010, 12:08 PM Go to last post
  14. Binomial formula - solve for N help ...

    Hi, I'm not a student and this is not for a test. I'm a programmer and this is related to the markets. This is a link for the common formula:...

    Started by brooksr‎, 03-07-2014 11:45 PM
    basic probability, binomial
    • Replies: 1
    • Views: 1,325
    03-08-2014, 01:42 AM Go to last post
  15. Binomial Formula ?

    Hi everyone, I'm absolutely going crazy trying to figure this problem out, and I know the answer LOL..I just can't figure out how they got it. Using...

    Started by desmoface‎, 10-18-2008 11:54 AM
    • Replies: 12
    • Views: 3,567
    10-19-2008, 10:25 PM Go to last post
  16. Binomial MLE

    Hello, I need some clarification on the following problem. Suppose Y ~ Bin (189, 59/189) Graphically show the likelihood function and...

    Started by jamesmartinn‎, 10-03-2010 02:02 PM
    • Replies: 1
    • Views: 4,471
    10-04-2010, 02:25 AM Go to last post
  17. Binomial Model?

    Hello, Would appreciate any help with the following question.. A shoe store's records show that 30% of customers making a purchase use a credit...

    Started by nat9‎, 09-03-2006 02:42 AM
    • Replies: 5
    • Views: 2,611
    09-05-2006, 08:35 AM Go to last post
  18. Binomial Probabilities

    These kinds of questions can be answered using the binomial probability distribution: 1. If I flip a coin 20 times, what is the probability of...

    Started by JohnM‎, 11-01-2005 02:50 PM
    • Replies: 0
    • Views: 48,964
    11-01-2005, 02:50 PM Go to last post
  19. Binomial probability

    Hi, I have the following problem. We are comparing two screening methods in one population. With method A we took 63 samples and 13 were...

    Started by Karr‎, 01-24-2006 11:01 AM
    • Replies: 2
    • Views: 3,053
    01-25-2006, 07:30 AM Go to last post
  20. Binomial probability

    Hello!! My question is: Only 30% of the people in a large city feel that mass transit system is adequate. If 20 different persons are selected at...

    Started by kelly g‎, 03-10-2012 03:42 PM
    • Replies: 11
    • Views: 4,145
    03-10-2012, 06:57 PM Go to last post
  21. binomial probability

    ok so here is the question i attempted but no getting the answer a loan officer has indicated that 80% of all loan application forms have zero...

    Started by cushane‎, 03-19-2012 06:48 PM
    • Replies: 0
    • Views: 2,414
    03-19-2012, 06:48 PM Go to last post
  22. Binomial Probability

    problem solved :)

    Started by OneT‎, 08-24-2012 11:39 PM
    • Replies: 0
    • Views: 1,401
    08-24-2012, 11:39 PM Go to last post
  23. Binomial probability

    A number of trials were run with a high success rate, n = 1700 & 99.9% success How can I calculate (with 95% confidence) the lowest probability of...

    Started by George Bea‎, 05-07-2013 04:11 AM
    • Replies: 8
    • Views: 1,876
    05-15-2013, 06:24 AM Go to last post
  24. Binomial Probability

    I am trying to figure out how many possible combinations there are for a 10 question survey that has yes or no answers. I tried writing out a sample...

    Started by Ker‎, 01-30-2014 10:30 AM
    • Replies: 1
    • Views: 1,146
    01-30-2014, 10:46 AM Go to last post
  25. Binomial Probability (Elementary Statistics)

    Hi, I was hoping someone could explain this to me. I've tried online tutoring, and honestly it doesn't seem like they know what their doing. My...

    Started by NotaMathGuy88‎, 02-13-2014 11:10 PM
    • Replies: 0
    • Views: 1,066
    02-13-2014, 11:10 PM Go to last post
  26. Unhappy Binomial Probability Distributions

    I am having alot of difficulty in my bio-statistics class can anyone help with these 2 questions? Create pmf and histogram before answering these...

    Started by ktladyk25‎, 10-06-2009 12:25 PM
    • Replies: 1
    • Views: 4,673
    10-06-2009, 01:08 PM Go to last post
  27. Binomial probability problem

    I have a problem working out the answer to this problem using the binomial formula. Assume an airline operates a short haul flight form Edinburgh...

    Started by ap183‎, 08-04-2010 08:12 AM
    • Replies: 4
    • Views: 3,278
    08-04-2010, 10:57 AM Go to last post
  28. binomial probability question

    The probability of having a boy = .51 and the probability of having a girl = .49. Find the largest number, "x," that will make this statement...

    Started by kimdoocheol‎, 10-14-2009 01:34 AM
    • Replies: 6
    • Views: 3,570
    10-14-2009, 10:18 PM Go to last post
  29. Binomial probability question

    Hi all, I have been stumped on this binomial probability question and was wondering if anyone can help me get started: I was thinking...

    Started by cyanogen1024‎, 12-01-2013 10:50 PM
    • Replies: 2
    • Views: 1,870
    12-04-2013, 02:48 PM Go to last post
  30. Binomial probability with another aspect?

    Assume that the orange widgets are produced independently of each other with the probability of an individual orange widget being good being equal to...

    Started by MATRL‎, 01-21-2013 04:09 PM
    binomial
    • Replies: 4
    • Views: 1,149
    01-22-2013, 05:47 PM Go to last post
  31. Question Binomial Probability, Real Limits, X=0

    Can someone have guessed on quiz and got all 50 questions wrong, but still get 100%? Thanks in advance! :D

    Started by jimbrowsky‎, 10-16-2011 01:22 AM
    binomial, binomial distribution, binomials, continuous, real limits
    • Replies: 7
    • Views: 4,437
    10-16-2011, 04:36 PM Go to last post
  32. Binomial probablity

    According to National Highway traffic Safety Administration 66% of California motorists use seat belts. Find the probablity that in one group of 12...

    Started by danny.kay‎, 12-24-2006 08:44 AM
    • Replies: 1
    • Views: 2,795
    12-27-2006, 12:20 AM Go to last post
  33. Unhappy Binomial Probablity Distribution exactly one & and at least one.. check my answer

    Your favorite baseball player has a 0.300 batting average (that is, he averages three hits for every 10 times he is up to bat). If he is up to bat...

    Started by ANNJALA‎, 10-11-2016 11:31 AM
    binomial probability
    • Replies: 3
    • Views: 2,415
    10-11-2016, 02:35 PM Go to last post
  34. Binomial Probably Variant help

    Ok so what i'm thinking here is that the P(X=3) = / 10! Am I on the right track here?

    Started by haml‎, 12-01-2013 03:40 PM
    • Replies: 3
    • Views: 1,324
    12-03-2013, 02:51 PM Go to last post
  35. Binomial Question

    Current medical studies indicate that 30% of the population will suffer from the flu each winter. A group of 12 people is randomly selected. a....

    Started by bbrown79‎, 12-02-2009 05:50 PM
    • Replies: 3
    • Views: 2,411
    12-02-2009, 08:08 PM Go to last post
  36. Binomial question

    Hi, I have attached a binomial question in excel (question & solution). In part (e), the question asks for the P(between 5 and 15 inclusive)...

    Started by pcampin‎, 12-30-2013 09:52 PM
    • Replies: 1
    • Views: 1,275
    01-03-2014, 12:01 AM Go to last post
  37. Binomial question?

    I have this question that I think is binomial probability. Bananas that are almost ripe to pick carry the chance of being 15% rotten. What would be...

    Started by chrismyers1‎, 04-23-2015 09:42 AM
    • Replies: 4
    • Views: 1,624
    07-21-2015, 12:32 PM Go to last post
  38. Binomial Random Variable

    A study of gambling activity at the university of west georgia discovered that 60% of the male students wagered on sports the previous year. Consider...

    Started by n77ler‎, 10-18-2008 05:23 PM
    • Replies: 1
    • Views: 3,085
    10-18-2008, 06:54 PM Go to last post
  39. binomial random variable

    I'm having trouble understanding how I'm supposed to answer part a of this question I'm on. I was able to do b, c, d, and e though. Problem: The...

    Started by lindseyam‎, 03-17-2014 02:46 PM
    • Replies: 0
    • Views: 3,141
    03-17-2014, 02:46 PM Go to last post
  40. Binomial Random Variable Help

    Hey everyone! I'm struggling with this question: Let x be a binomial random variable and suppose n= 20, p=0.5. Then P(μ-σ ≤ x ≤ μ+σ) is: i...

    Started by snypeshow‎, 02-17-2012 06:22 PM
    • Replies: 1
    • Views: 2,285
    02-17-2012, 07:34 PM Go to last post
  41. Binomial random variable proof

    Hi guess, the question asks If X is a binomial random variable with parameters n, and P, where 0< p < 1, show that a) P(X=k+1) =...

    Started by jwxie518‎, 06-26-2011 05:52 PM
    • Replies: 2
    • Views: 3,502
    06-26-2011, 08:56 PM Go to last post
  42. Binomial random variable question

    I have this question that is driving me batty & I cannot figure it out. I'm taking entry level stats online & have driven to the campus a few times...

    Started by disgurl‎, 06-16-2009 11:26 AM
    • Replies: 5
    • Views: 5,337
    06-16-2009, 09:34 PM Go to last post
  43. Binomial Test in Excel

    What is the probability of getting AT LEAST 79 out of 90 correct on a True or False test if you are guessing on every question? I think I need to...

    Started by bengalgirl‎, 12-06-2014 04:46 PM
    binomial distribution, excel
    • Replies: 0
    • Views: 2,292
    12-06-2014, 04:46 PM Go to last post
  44. Post Binomial variability

    Hi, I have in my research 45 children who took a test twice and the score is either (correct or incorrect). I calculated confidence intervals for...

    Started by Nadahmed‎, 05-19-2013 02:25 PM
    • Replies: 0
    • Views: 1,163
    05-19-2013, 02:25 PM Go to last post
  45. Binomial, did I solve correctly ?

    Hi guys, can you please tell me if I am anyway right with this ? The price of a cake of kind A is 15$. The price of a cake of kind B is 10$. The...

    Started by WeeG‎, 02-26-2011 12:17 PM
    • Replies: 3
    • Views: 2,367
    02-26-2011, 11:18 PM Go to last post
  46. Binomial/geometric distributions

    Which of the following are true statements? I. The histogram of a binomial distribution with p=0.5 is always symmetric II. The histogram of a...

    Started by fireman144‎, 03-06-2011 10:54 PM
    • Replies: 6
    • Views: 5,618
    03-07-2011, 03:21 AM Go to last post
  47. Question Binomialdistribution

    The question is as follows: In a carnival game, a person can win a prize by guessing which one of 5 identical boxes contains the prize. After each...

    Started by glucky‎, 10-24-2006 12:27 PM
    • Replies: 0
    • Views: 5,456
    10-24-2006, 12:27 PM Go to last post
  48. Binominal Distribution

    For this kind of question would I be best using the Binominal Distribution equation? So (n!/X!(n-X)!) (p^X(1-p)^n-x) Or would another...

    Started by ianhirst‎, 11-28-2013 03:50 PM
    • Replies: 3
    • Views: 1,162
    11-30-2013, 04:39 AM Go to last post
  49. Question Binominal Distribution (urgent)

    kindly help (or provide hints) on below question: Suppose that you pay $1024 to enter a coin tossing game. A biased coin with head probability...

    Started by lkwokchu‎, 10-12-2014 06:11 AM
    • Replies: 5
    • Views: 2,386
    10-16-2014, 12:48 AM Go to last post
  50. Binominal vs Geometric.....confused!!!!

    Hi there, I am currently working on these questions but I don't really get how to work them out. Is it wrong to use the binomial distribution for a)...

    Started by mmmmxx‎, 10-23-2011 01:13 PM
    binominal
    • Replies: 0
    • Views: 3,833
    10-23-2011, 01:13 PM Go to last post
  51. bins and balls

    Working a problem from a text that asks if you have n balls and place them in n bins, what is the probability that exactly one bin remains empty. ...

    Started by kzeldon‎, 07-12-2012 10:44 PM
    • Replies: 0
    • Views: 2,635
    07-12-2012, 10:44 PM Go to last post
  52. bio stats probability basic problem

    : Biostatistics problem. Probability of obtaining positive test results in a diagnostic method. Hello: I have a biostatistics/probability...

    Started by parsec2011‎, 05-29-2013 06:03 AM
    diagnostic
    • Replies: 9
    • Views: 2,146
    06-23-2013, 09:31 AM Go to last post
  53. Bionomial Distribution question

    Am I on the right track or close????? I have been working all day to figure this question out If 60&#37; of voters favor new ball park: A. If...

    Started by thagentleman‎, 04-19-2009 05:45 PM
    • Replies: 2
    • Views: 2,827
    04-19-2009, 11:07 PM Go to last post
  54. Bionomial distribution:expected value problem question

    : The FBI Standard survey of crimes shows that for about 80% of all property crimes, the criminals arenever found and the case is never solved....

    Started by Nellen2222‎, 10-07-2012 06:19 PM
    • Replies: 3
    • Views: 4,687
    10-08-2012, 04:48 AM Go to last post
  55. birth defects - probability

    I am new and really stuck with this one: Analyzing cases of a rare congenital defect>>>>>>>>>>>>> 1 female in 30 in the population carries the...

    Started by free‎, 04-22-2008 03:54 AM
    • Replies: 3
    • Views: 5,820
    04-25-2008, 01:26 PM Go to last post
  56. birthday coincidence

    Hi, I'm wondering if anyone can help with something that's been puzzling my family for years. I have 3 sons, 2 from my first marriage and one from...

    Started by AngieT‎, 08-15-2011 10:34 AM
    • Replies: 10
    • Views: 2,726
    08-17-2011, 02:24 PM Go to last post
  57. Birthday problem

    ignore this, I have solved the problem

    Started by abcboy‎, 11-25-2006 12:52 AM
    • Replies: 0
    • Views: 2,435
    11-25-2006, 12:52 AM Go to last post
  58. Birthday Problem

    I understand the math behind the birthday problem However, intuitively, I don't quite understand why the percentages don't go up linearly? For...

    Started by shrek‎, 06-17-2008 07:55 AM
    • Replies: 1
    • Views: 3,183
    06-17-2008, 11:16 AM Go to last post
  59. Birthday Problem

    Can anyone help me with these questions? I am new in probability and i even don't know where to start..:( (1)What is the minimum number of people...

    Started by sanjitpatel2004‎, 09-19-2009 10:46 AM
    • Replies: 5
    • Views: 3,760
    09-20-2009, 04:57 PM Go to last post
  60. Birthday Problem

    This is not the traditional birthday problem. Lets say I have 657 friends. What are the odds that none of them have a birthday today? This...

    Started by gagnonca‎, 06-13-2012 08:00 PM
    birthday problem
    • Replies: 3
    • Views: 1,791
    06-13-2012, 09:00 PM Go to last post

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