1. Announcement:
    Want access to a chatbox?
    Dason ‎(Devorador de queso)
    05-10-2017
    Views:
    1,855
+ Post New Thread
Page 11 of 91 FirstFirst 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 61 ... LastLast
Threads 601 to 660 of 5449

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: 30,249
    09-30-2005, 09:44 AM Go to last post
  1. Lightbulb Weighted Die

    Hello I have a question about weighted die and binomal distribution the question goes like this Someone rolls one die 5 times. The die is...

    Started by quackquack‎, 02-13-2011 02:00 AM
    • Replies: 3
    • Views: 5,645
    02-13-2011, 03:25 PM Go to last post
  2. count of integers in sliding window

    Hi all, I'm looking to generate a series of integers in the range , that start off with a large spacing, like 2 50 101, etc. At a peak of some...

    Started by discoross‎, 12-18-2009 03:45 AM
    • Replies: 11
    • Views: 5,643
    02-26-2010, 06:29 AM Go to last post
  3. Probability Question Needed to be Answered

    A youth group has eight boys and six girls. If a state of four officers is selected, find the probability that... a.) Three are girls? b.) Two...

    Started by jensen02431‎, 03-11-2008 11:19 AM
    • Replies: 1
    • Views: 5,639
    03-11-2008, 05:49 PM Go to last post
  4. method of moments and MLE question

    Hello all, I have a question regarding a problem asking to obtain an estimator for theta using MLE and method of moments and then to compute the...

    Started by romanha1‎, 10-29-2011 06:47 PM
    • Replies: 7
    • Views: 5,626
    10-29-2011, 08:48 PM Go to last post
  5. 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: 5,623
    03-07-2011, 03:21 AM Go to last post
  6. Normal distribution problems

    I'm having some issues with a few questions on my practice final. Let X be a normally distributed random variable with expectation = -1 and...

    Started by player‎, 12-14-2010 10:37 AM
    2 Pages
    1 2
    • Replies: 15
    • Views: 5,608
    12-20-2010, 02:38 PM Go to last post
  7. roulette probability questions

    PLEASE HELP ME ASAP WITH THIS PRBLEM!!! In the game of roulette, the probability of winning when the betting on a color is 0.474. Assume the game...

    Started by natalie‎, 06-11-2006 09:59 PM
    • Replies: 1
    • Views: 5,603
    07-19-2006, 09:17 AM Go to last post
  8. Confidence interval, pls help

    Hi could i pls get some help with these questions. I dont want the answer. I would be greatful if someone could even tell me what formula i would...

    Started by sweetlady‎, 11-21-2006 11:20 AM
    • Replies: 2
    • Views: 5,602
    11-21-2006, 04:04 PM Go to last post
  9. Thumbs up Probability Questions help please

    The finishing process on new furniture leaves slight blemishes. The table shown below displays a manager’s probability assessment of the number of...

    Started by sgk1979‎, 11-18-2009 05:05 PM
    • Replies: 2
    • Views: 5,602
    11-18-2009, 09:37 PM Go to last post
  10. Maximum Likelihood Estimator question with binomial distribution

    Q. Lifetimes of components are Gamma distributed. The parameters of the Gamma are shape = a scale = λ The pdf is: f(x) =...

    Started by languagelearner23‎, 03-06-2011 07:43 AM
    • Replies: 3
    • Views: 5,583
    03-06-2011, 01:21 PM Go to last post
  11. law of total expectation (VECTOR case)

    " The law of total expectation is: E(Y) = E. It can be generalized to the vector case: E(Y) = E. Further extension: (i) E(Y|X1) = E (ii)...

    Started by kingwinner‎, 11-18-2009 02:53 AM
    • Replies: 4
    • Views: 5,582
    11-21-2009, 12:35 PM Go to last post
  12. Sampling distribution of the proportion

    I have a fairly simple question about a specific step within this problem. "The probability is 90% that the sample percentage is contained within...

    Started by TheDev‎, 07-23-2011 07:45 PM
    • Replies: 2
    • Views: 5,578
    07-23-2011, 08:02 PM Go to last post
  13. MGF Standard Normal to Normal

    Hi, I'm just doing some review problems and I've found the MGF of a standard normal random variable, X ~ N(0,1). After some tedious algebra, I...

    Started by jamesmartinn‎, 11-24-2010 08:13 PM
    • Replies: 3
    • Views: 5,577
    11-25-2010, 12:40 AM Go to last post
  14. Multivariate conditional probability

    Hello all, I'm having a difficult time finding an equation that will give me the conditional probability of a specific scenario occurring. To...

    Started by oreo0313‎, 01-03-2011 10:18 PM
    • Replies: 6
    • Views: 5,572
    01-04-2011, 11:16 AM Go to last post
  15. Pick 3 items, probability that A<B<C

    This question has been bugging me the last 24 hours or so, hopefully someone here can break it down for me. Say you have N number of items that...

    Started by pjyelton‎, 06-25-2010 12:23 PM
    • Replies: 3
    • Views: 5,564
    06-25-2010, 03:52 PM Go to last post
  16. Tree Diagram

    Can some please explain how the Tree Diagram works...

    Started by n2c2mm2nt‎, 09-27-2006 09:52 PM
    • Replies: 7
    • Views: 5,562
    09-29-2006, 11:18 AM Go to last post
  17. help with 2 r.v. normal distribution problem

    Hi all, so my question has to do with 2 r.v. and normal distribution. X: mean = 5000, standard deviation = 100 Y: mean = 5200, standard...

    Started by pww‎, 03-08-2010 04:15 PM
    • Replies: 8
    • Views: 5,562
    04-06-2010, 08:54 PM Go to last post
  18. Expected value of Yi^2

    Yi is i.i.d. N(0,σ^2) for i=1 to n. E=0, var=σ^2 Show that E = 1 if E = 0, how does the the sum of squared Yi's equal 1?

    Started by alias‎, 10-16-2011 07:28 PM
    • Replies: 3
    • Views: 5,560
    10-16-2011, 11:48 PM Go to last post
  19. Could someone please help? Probability of sampling error?

    This is one concept I cannot understand. I'm studying for a test and loathe the probability chapter. Here is the problem and I following all of the...

    Started by mnb124‎, 04-14-2012 05:56 PM
    • Replies: 12
    • Views: 5,559
    04-15-2012, 06:45 AM Go to last post
  20. Settle an Argument

    A social club has a daily contest where they draw a name from a list of all of the club members. A name is drawn each day. In order to win, you must...

    Started by ScottWH‎, 07-23-2010 06:32 AM
    2 Pages
    1 2
    • Replies: 19
    • Views: 5,552
    07-27-2010, 07:22 PM Go to last post
  21. Normal Distribution Problem

    Hello everyone, I am stuck on some problems involving normal distribution. Any help would be GREATLY appreciated. Unfortunately, this is for an...

    Started by fizoster‎, 03-31-2013 03:03 PM
    • Replies: 1
    • Views: 5,535
    04-05-2013, 03:20 PM Go to last post
  22. Finding P(X-Y=0)

    Hi, I have several distributions which I want to compare. They include the Burr distribution, Johnson SB, logistic and a few others. They are all...

    Started by julep‎, 01-27-2012 09:33 AM
    • Replies: 2
    • Views: 5,534
    01-27-2012, 04:25 PM Go to last post
  23. Expected value of second highest draw

    Hello all, Suppose I take two draws from a uniform distribution on . I know that the value of the highest draw is equal to x. What then is the...

    Started by Salohcin‎, 11-28-2010 01:33 PM
    • Replies: 1
    • Views: 5,518
    11-28-2010, 02:01 PM Go to last post
  24. normal distribution problem

    Question..?? I cant seem to get this right. Do I find the z-score then do the problem or... please help.. question The life span of oil-drilling...

    Started by SUNSHINE09‎, 02-28-2009 09:48 AM
    • Replies: 4
    • Views: 5,517
    03-01-2009, 11:28 AM Go to last post
  25. type 2 error probability

    Hi, I need help calculating the type 2 error probablity A Harris poll was taken to determine which of 13 major industries are doing a good job...

    Started by neraken‎, 04-08-2011 01:49 AM
    • Replies: 0
    • Views: 5,516
    04-08-2011, 01:49 AM Go to last post
  26. Conditional Probability Venn Diagram

    I am having a very difficult time trying to determine how they got the probabilities shown in the Venn Diagram from the above information. I'm...

    Started by JoeO15‎, 10-16-2011 03:16 PM
    • Replies: 3
    • Views: 5,515
    10-17-2011, 03:09 AM Go to last post
  27. Probability problem and 2 others

    Ok I have 3 problems and I cant figure them out :mad: its driving me crazy. 1. The number of calls coming into a PBX follows a Poisson process...

    Started by durrett syndrome‎, 04-17-2007 04:03 PM
    • Replies: 5
    • Views: 5,513
    04-19-2007, 05:31 PM Go to last post
  28. Need help in finding the probability of events occuring?

    Question: i have a total of 16 events whereby the probability of 2 events occuring is 0.3, the probability of 6 events occuring is 0.003 and the...

    Started by spidermman‎, 07-19-2008 04:10 AM
    • Replies: 6
    • Views: 5,513
    07-20-2008, 01:38 AM Go to last post
  29. uniform distribution

    Assume that the weight loss for the first month of a diet program varies between 6 pounds and 12 pounds, and is spread evenly over the range of...

    Started by jewsvideo‎, 05-14-2009 05:09 AM
    • Replies: 0
    • Views: 5,513
    05-14-2009, 05:09 AM Go to last post
  30. Probability Please Help

    I cannot figure out this problem for the life of me. Can someone please help me. I have the answer. .58. However, I cannot figure out the solution. I...

    Started by hyperlite‎, 12-05-2009 12:16 AM
    • Replies: 2
    • Views: 5,512
    12-05-2009, 02:05 AM Go to last post
  31. Please help Its urgent --Probability question

    Robert is a

    Started by sahilkthr‎, 11-05-2008 01:51 AM
    2 Pages
    1 2
    • Replies: 23
    • Views: 5,496
    11-06-2008, 06:03 PM Go to last post
  32. Need Help, how to interpret the goodness of fit, bivariate probit model

    I ran proc qlim in SAS, bivariate probit model, but dont know how to interpret the results. Could anyone please help me out of this problem.... ...

    Started by Chopin‎, 03-04-2009 04:01 AM
    • Replies: 0
    • Views: 5,496
    03-04-2009, 04:01 AM Go to last post
  33. Expected Value of (1/N)

    Someone rolls a pair of dice repeatedly until the first time a sum of eleven shows. Let N be the number of rolls required. Find E(1/N). So N is a...

    Started by amazedmango‎, 05-08-2011 06:17 PM
    • Replies: 2
    • Views: 5,493
    05-10-2011, 04:26 AM Go to last post
  34. 99% Confidence Interval

    Hi Guys, I'm stuck and need a little help on this one. I have calculated mean: 74.40 and Std Dev: 12.251 from Population 262, Sample 103. I...

    Started by Baseball Furies‎, 01-23-2011 04:40 PM
    • Replies: 3
    • Views: 5,490
    01-23-2011, 05:15 PM Go to last post
  35. Calculating probability given mean and standard deviation

    Hi I have looked around for this post on the forum but could not find one and have spent a while attempting this question: Given that X is...

    Started by omf52‎, 10-28-2012 09:43 AM
    normal, p-value, standard deviation
    • Replies: 0
    • Views: 5,480
    10-28-2012, 09:43 AM Go to last post
  36. Simple probability question. Involves drawing name for gift.

    We had a dinner with my family where we draw names to give gift this christmas. The only rule was to not pick our name. We did it a couple of time...

    Started by moris7‎, 10-09-2009 09:02 AM
    • Replies: 4
    • Views: 5,478
    10-14-2009, 10:08 PM Go to last post
  37. z standard normal

    First part of the question asks..if X is normal with mean = 8.48 and sd = 1.6, what are the 2 values of X which include central 80% of probability? ...

    Started by citibankak‎, 04-11-2008 12:21 AM
    • Replies: 1
    • Views: 5,471
    04-11-2008, 07:18 AM Go to last post
  38. Number of bit combinations

    Hi, Here's a simple question (sorry, this is probably probability 101, but I am no statistician!) I know that I can make up 2^n different...

    Started by Whalojazz‎, 06-30-2009 07:41 PM
    • Replies: 3
    • Views: 5,469
    07-01-2009, 08:12 AM Go to last post
  39. Weighted coin probability

    The problem: A coin is weighted to show heads 60% of the time. How many coin tosses are needed to have 90% confidence of getting more heads than...

    Started by bob3690‎, 06-06-2011 06:05 AM
    • Replies: 5
    • Views: 5,469
    06-06-2011, 03:18 PM Go to last post
  40. Can't seem to solve this p(x+y>1)

    Given f(x,y) = 3x/2 for 0<x<1 , -x<y<x Find P(x+y>1) .

    Started by saternal‎, 03-31-2012 04:43 AM
    2 Pages
    1 2
    • Replies: 15
    • Views: 5,462
    04-01-2012, 07:13 PM Go to last post
  41. Interpretation of ratios Cp

    Hi to everyone!! I have solved one exercise in statistics and I have a problem in the interpretation of these ratios: I calculated the following for...

    Started by gedoris‎, 02-24-2010 05:51 PM
    • Replies: 3
    • Views: 5,459
    02-25-2010, 08:27 PM Go to last post
  42. Smile PDF and E(Y)

    Hi All, I'm going through revision questions, and I am stuck on this particular section all with similar questions. If somebody can give me a guide...

    Started by woody198403‎, 05-09-2008 02:40 AM
    • Replies: 8
    • Views: 5,457
    05-14-2008, 07:03 AM Go to last post
  43. 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
  44. p-value of empirical distribution

    I obtained an empirical distribution (with simulation) of a specific measure - I have 1000 values. Now I want to do right tail test. How do I get...

    Started by Maverick85‎, 04-17-2010 03:31 PM
    • Replies: 0
    • Views: 5,450
    04-17-2010, 03:31 PM Go to last post
  45. 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: 5,449
    07-18-2013, 06:18 PM Go to last post
  46. Expected number of times until x occurs

    Hello all, I am just writing to see if this is right. There are two things that can occur. With a probability 1/a, event y occurs and you get a...

    Started by Salohcin‎, 06-10-2010 11:25 AM
    • Replies: 5
    • Views: 5,447
    06-10-2010, 10:30 PM Go to last post
  47. Help! First time taking Stats and soooo confused!

    I'm taking Statistics online and every week I can barely get through the assigned problems. I'm not sure how to even begin figuring out this...

    Started by Midnightedge21‎, 10-19-2008 01:05 PM
    • Replies: 12
    • Views: 5,442
    11-06-2008, 09:53 AM Go to last post
  48. Special Continuous Distributions

    I am NOT asking for answers!! Let me make that clear... I'm only asking for help in the method as to solving problems such as these. I missed my...

    Started by dgbula‎, 11-03-2010 03:31 PM
    • Replies: 3
    • Views: 5,441
    11-03-2010, 06:55 PM Go to last post
  49. what is predictive power?

    Can anyone please tell me what is meant by 'predictive power' of a statement? what is it represented as? Thanks

    Started by godsaveme‎, 09-08-2010 07:20 PM
    • Replies: 0
    • Views: 5,440
    09-08-2010, 07:20 PM Go to last post
  50. Interesting Bean Problem

    Good evening, I've encountered an interesting problem and need a little help with it (: Question 1A) A bean is placed in a bag. The bean is...

    Started by mysterdusk‎, 10-27-2010 07:26 AM
    • Replies: 6
    • Views: 5,430
    10-29-2010, 11:38 PM Go to last post
  51. Normal Probability Distribution

    In 2010, the population of SAT scores were normally distributed with a mean of 1020 (reading and math only) and a standard deviation of 200. The NCAA...

    Started by the_chemist‎, 01-06-2011 05:51 PM
    distribution, excel, normal
    • Replies: 2
    • Views: 5,428
    01-06-2011, 07:49 PM Go to last post
  52. Homework Help

    I am not sure where to begin or what to do with the below question. Any help would be ace. Cheers. Suppose that fifty people are to be given a...

    Started by statsdud‎, 04-27-2008 07:28 AM
    • Replies: 6
    • Views: 5,427
    05-01-2008, 10:48 PM Go to last post
  53. collect sales taxes on items purchased through the internet

    Many states are carefully considering steps that would help them collect sales taxes on items purchased through the internet. How many randomly...

    Started by BMarks‎, 12-06-2007 03:58 PM
    • Replies: 0
    • Views: 5,419
    12-06-2007, 03:58 PM Go to last post
  54. Question please help...i'm stuck

    Question: There are 8,000 teachers at UCLA. The average age of all the teachers is 24 years with a standard deviation of 9 years. A random sample...

    Started by ecohelp‎, 10-14-2005 02:24 PM
    • Replies: 5
    • Views: 5,416
    10-14-2005, 08:55 PM Go to last post
  55. How can I find E[max Xi \ X1<X2<X3] ????

    If Xi , i = 1, 2, 3, are independent exponential random variables with rate lambda_i, i=1, 2, 3 find E :conditioning problem How can I proof that...

    Started by Kui‎, 03-30-2009 08:08 AM
    • Replies: 0
    • Views: 5,414
    03-30-2009, 08:08 AM Go to last post
  56. Post simple probability questions

    Hi, I need some help with this question, it seems simple, but I am not sure I did it correctly... In some country, there are 3 newspapers. 30%...

    Started by Yankel‎, 06-18-2011 09:21 AM
    • Replies: 3
    • Views: 5,412
    06-18-2011, 03:04 PM Go to last post
  57. Help!!! Normal distribution probability problem..

    I don't know if anyone asked similar question before, but the problem asks: The physical fitness of a patient is often measured by the patient’s...

    Started by puretopaz‎, 10-13-2009 09:38 PM
    • Replies: 4
    • Views: 5,411
    10-14-2009, 12:47 PM Go to last post
  58. Conditional expectation question

    Hey, I would really appreciate your help with the following question: X and Y each has a uniform distribution on and the two are independent....

    Started by busstud123‎, 03-01-2010 12:10 PM
    • Replies: 8
    • Views: 5,404
    03-06-2010, 02:46 AM Go to last post
  59. Poisson Distribution

    Here's the question: The number of calls that come into a small mail-order company follows a Poisson distribution. Currently, these calls are...

    Started by melaniemarieg‎, 02-21-2011 08:18 PM
    • Replies: 1
    • Views: 5,398
    02-24-2011, 04:17 AM Go to last post
  60. Poisson and Geometric Random Variable questions

    Hi all, Can anyone tell me if I got the correct answers for the below two questions? Any help is appreciated. Q:Let X have a Poisson...

    Started by dizzle1518‎, 04-26-2011 08:11 PM
    • Replies: 6
    • Views: 5,397
    04-28-2011, 10:29 PM Go to last post

+ Post New Thread
Page 11 of 91 FirstFirst 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 61 ... LastLast

Thread Display Options

Use this control to limit the display of threads to those newer than the specified time frame.

Allows you to choose the data by which the thread list will be sorted.

Order threads in...

Note: when sorting by date, 'descending order' will show the newest results first.

Icon Legend

Contains unread posts
Contains unread posts
Contains no unread posts
Contains no unread posts
More than 15 replies or 300 views
Hot thread with unread posts
More than 15 replies or 300 views
Hot thread with no unread posts
Closed Thread
Thread is closed
Thread Contains a Message Written By You
You have posted in this thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts






Advertise on Talk Stats