1. Announcement:
    Want access to a chatbox?
    Dason ‎(Devorador de queso)
    05-10-2017
    Views:
    1,901
+ Post New Thread
Page 17 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 31 32 33 34 35 36 67 ... LastLast
Threads 961 to 1020 of 5451

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: 30,353
    09-30-2005, 09:44 AM Go to last post
  1. probabilities

    I am german and I have some difficulties understanding some terms. I have a homework in reference to probabilities. Please help me with the formula....

    Started by umutc23‎, 07-04-2008 08:26 PM
    • Replies: 3
    • Views: 2,722
    07-06-2008, 06:02 PM Go to last post
  2. probability of exceedence

    Hi all, I'm new here, but I have a problem I can't figure out. I have wave height data from the past 13 years and I fitted the data with a...

    Started by zuid‎, 07-07-2008 09:42 AM
    • Replies: 0
    • Views: 3,119
    07-07-2008, 09:42 AM Go to last post
  3. Sample mean and variance of dependent random variables

    The sample mean and variance of independent random variables are mean = E(X) variance = Var(X)/n What if the random variables are dependent? ...

    Started by shrek‎, 07-09-2008 01:41 PM
    • Replies: 1
    • Views: 13,463
    07-10-2008, 03:57 AM Go to last post
  4. Comparing CDFs using Chi squared?

    HI, I have a set of data from which I can construct the cumulative distribution function. I then compare this contructed CDF with the CDFs of a...

    Started by aler‎, 07-09-2008 11:45 AM
    • Replies: 3
    • Views: 4,634
    07-10-2008, 07:44 AM Go to last post
  5. Probability of Amino Acid Sequence

    I need to predict the frequency of a certain chain of amino acids occurring by chance. Sequence: N - X - S (where X is any amino acid) So far...

    Started by welshchem‎, 07-10-2008 02:03 PM
    • Replies: 2
    • Views: 2,961
    07-11-2008, 08:41 AM Go to last post
  6. Question Help with finding indicated probability

    I have worked on this problem now for the whole entire day, and still don't understand what I am doing wrong. Can someone help me? The problem...

    Started by teneclady201‎, 07-10-2008 05:40 PM
    • Replies: 4
    • Views: 29,098
    07-13-2008, 06:04 PM Go to last post
  7. Question Need Help Understanding Independence

    Unfortunately, I am having trouble understanding independence. Can anyone explain independence to me in dummy terms?

    Started by Prob_help‎, 07-16-2008 12:32 PM
    • Replies: 2
    • Views: 3,386
    07-17-2008, 04:08 AM Go to last post
  8. Comparing conditional probabilities?

    I have 250 respondents. They’ve reported their participation in three different kinds of political activities: reading about politics on line,...

    Started by DDN1972‎, 07-17-2008 07:08 PM
    • Replies: 2
    • Views: 2,890
    07-17-2008, 08:22 PM Go to last post
  9. Confidense interval for population standard deviation

    Here is one I am stuck on...not even sure where to begin. Oh, and it is due in 19 hours ;-) A bank is attempting to improve the perceived customer...

    Started by DryMouse‎, 07-15-2008 10:48 PM
    • Replies: 2
    • Views: 3,876
    07-18-2008, 02:24 PM Go to last post
  10. Problem help needed

    Does anyone know how to solve the following problem: i)Toss a coin until the nth H comes up. Let Y=#of required tosses. Calculate P(Y is even)....

    Started by y2knp‎, 07-19-2008 05:52 PM
    • Replies: 0
    • Views: 1,760
    07-19-2008, 05:52 PM Go to last post
  11. 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: 5,537
    07-20-2008, 01:38 AM Go to last post
  12. How to solve this problem?

    HI, i get stuck on this problem, any1 knows how to solve it??? Horizontal lines y = n (n = 0, +-1,...) are drawn in R^2. A needle of length 1 is...

    Started by kickking2003‎, 07-20-2008 10:13 AM
    • Replies: 1
    • Views: 2,473
    07-20-2008, 10:38 AM Go to last post
  13. Help!

    Hi.. I am confused about how to solve this problem. I believe I should solve it by using the proportion formula but my results do not match my...

    Started by kendra‎, 07-20-2008 11:49 PM
    • Replies: 5
    • Views: 2,647
    07-21-2008, 02:11 PM Go to last post
  14. Help with coins!!!

    Hi.. I don't know how to get started. Here is my problem: A coin was flipped 60 times and came up heads 38 times. (a) At the .10 level of...

    Started by kendra‎, 07-21-2008 02:12 PM
    • Replies: 2
    • Views: 3,288
    07-21-2008, 09:22 PM Go to last post
  15. P- value

    Hi. Could a p-value be 5.7597? It seems too big!!!

    Started by kendra‎, 07-21-2008 10:16 PM
    • Replies: 1
    • Views: 2,691
    07-21-2008, 10:45 PM Go to last post
  16. What is the process spread ?

    Here's the question: Fifty measurements were taken to determine the weights of filled ice cream containers. The average of these measurements is...

    Started by greyghost‎, 07-23-2008 06:47 AM
    • Replies: 2
    • Views: 11,833
    07-23-2008, 07:12 AM Go to last post
  17. Hello, i need an answer to this probability problem. please help?

    A teenager is mugged in the city centre for his expensive, size 9, trainers by a white man. A white suspect from the same city is arrested wearing a...

    Started by greg24‎, 07-23-2008 10:27 AM
    • Replies: 0
    • Views: 2,040
    07-23-2008, 10:27 AM Go to last post
  18. Stats question.

    Part 1. In how many ways can a television director schedule a sponsor's six different commercials during the six time slots allocated to commercials...

    Started by bjc-8000‎, 07-23-2008 02:56 PM
    • Replies: 1
    • Views: 3,103
    07-23-2008, 07:37 PM Go to last post
  19. probability of 'wrong-direction' pair

    Hello! I have two normal distributions N1, N2 with means m1, m2 and standard deviations s1, s2. Let's say that m1 < m2. If I draw one observation...

    Started by dej76‎, 07-20-2008 11:02 AM
    • Replies: 3
    • Views: 2,279
    07-23-2008, 07:47 PM Go to last post
  20. An Unusual Probability Question

    Hello everyone, I wonder if anyone would be willing to help me in deciding whether an unusual array of numbers I've found within the NIV Bible is...

    Started by thebluetriangle‎, 07-24-2008 09:44 AM
    • Replies: 0
    • Views: 2,956
    07-24-2008, 09:44 AM Go to last post
  21. Conditional Probability

    I was hoping someone could shine some light on how to go about solving this question.... A dog has a litter of four pups. Assume, as usual, that...

    Started by anemro‎, 07-27-2008 02:25 PM
    • Replies: 1
    • Views: 2,108
    07-27-2008, 03:18 PM Go to last post
  22. I think this is binomial???

    I was wondering if anyone can solve this problem and let me know how they did it. I am thinking this is a binomial problem, but I haven't been able...

    Started by anemro‎, 07-28-2008 09:14 PM
    • Replies: 2
    • Views: 2,700
    07-30-2008, 09:34 PM Go to last post
  23. Joint/Marginal PDF question

    OK, I have this problem on my hw I am struggling through. Random vector (X,Y) has the joint pdf f(x,y) = c(x^2+y^2), for x^2+y^2<1, and = 0...

    Started by kditrag‎, 07-28-2008 11:58 AM
    • Replies: 1
    • Views: 4,798
    07-31-2008, 04:33 PM Go to last post
  24. Red face Bayes Theorem application

    Prior probabilities if diseases are based on the physician’s assessment of factors such as geographic location, seasonal influences, and occurrence...

    Started by ana_talkstats‎, 08-01-2008 02:39 PM
    • Replies: 1
    • Views: 4,970
    08-03-2008, 12:55 PM Go to last post
  25. finding value of z0

    P(|z| > z0) = 0.10 Find z0. I think the answer is z0 = 1.28, however I'm not sure how to get that. The first time I did it, I got 1.645,...

    Started by toronto416‎, 08-04-2008 11:39 AM
    • Replies: 1
    • Views: 23,627
    08-04-2008, 11:55 AM Go to last post
  26. p-value to compare agreement between 2 methods

    I have 2 methods which, given a list of variables, put these variables into an order. So imagine I have 20 possible variables,...

    Started by tastico‎, 08-04-2008 08:07 AM
    • Replies: 2
    • Views: 4,946
    08-04-2008, 12:51 PM Go to last post
  27. Probability that 53% of College Students graduate in 5 years or less

    Good Afternoon, I am working on a problem and got stuck. The problem is below: It is estimated that approximatly 53% of College Students graduate...

    Started by pjkaraffa‎, 08-05-2008 01:58 PM
    • Replies: 2
    • Views: 4,065
    08-05-2008, 06:46 PM Go to last post
  28. Is there enough information here to solve this problem?

    I'm not sure if I should be posting this under statistics or probability, but here's the problem: Jan did a survey of the students in her class in...

    Started by Joy‎, 08-06-2008 11:30 AM
    • Replies: 3
    • Views: 2,792
    08-06-2008, 12:40 PM Go to last post
  29. Movement in Consumer Choice / Markov Chain??

    I'm trying to determine a way to model the choice behavior of a group of individuals whose choices are based on a 5-point scale (i.e. they can select...

    Started by Crystal‎, 08-06-2008 03:39 PM
    • Replies: 1
    • Views: 2,374
    08-06-2008, 04:03 PM Go to last post
  30. Poisson/Binomial distribution help

    Hi everyone I'm enrolled in a first year intro stats paper at uni and am having difficulty solving questions on proportions using binomial or...

    Started by Silvanus‎, 08-05-2008 06:03 PM
    • Replies: 6
    • Views: 3,648
    08-06-2008, 04:59 PM Go to last post
  31. Estimating Sports Statistics

    I need some help with football application. I have a set of quarterback statistics projections for an entire season (16 games), including the players...

    Started by vsiddhartha‎, 08-07-2008 10:43 AM
    • Replies: 2
    • Views: 2,721
    08-07-2008, 01:56 PM Go to last post
  32. Luck vs. Skill Question

    Hi, I am reading the book "Fooled By Randomness" by Nassim Nicholas Taleb and ran into what I think is a statistics/probability question. In the book...

    Started by uni412‎, 08-07-2008 01:43 PM
    • Replies: 1
    • Views: 3,069
    08-07-2008, 02:06 PM Go to last post
  33. moment generating function

    Hi I have a question here: Let X be N(µ, Σ) obtain its moment generating function anyone know how to do it?? it really confused me !! ...

    Started by smallkai‎, 08-08-2008 12:35 AM
    • Replies: 1
    • Views: 2,934
    08-08-2008, 01:08 AM Go to last post
  34. Dummy variables and regression

    Hi there, I am using Y (with 6 categories) as an independent variable. In order to regress this variable with a dependent variable (Z), I had to...

    Started by Jana‎, 08-08-2008 01:40 AM
    • Replies: 1
    • Views: 3,994
    08-08-2008, 03:40 AM Go to last post
  35. Statistical significance for discrete data?

    I'm getting myself in a muddle and hoping someone can help! I am analysing a discrete data set - I am comparing my control and experimental group,...

    Started by 1982lu‎, 08-09-2008 09:28 AM
    • Replies: 0
    • Views: 2,452
    08-09-2008, 09:28 AM Go to last post
  36. Method for Bayes spam filtering

    I am trying to understand the method for Bayesian spam filtering given here http://en.wikipedia.org/wiki/Bayesian_spam_filtering It makes sense...

    Started by andrewz‎, 08-10-2008 04:35 PM
    • Replies: 0
    • Views: 1,706
    08-10-2008, 04:35 PM Go to last post
  37. two questions for "poisson process"

    Hi: I have 2 questions regarding the poisson process... 1) Let{N(t), t>=0} be a poisson process of rate 1. Evaluate E( N(3) | N(2),N(1) ) ...

    Started by smallkai‎, 08-09-2008 06:43 PM
    • Replies: 1
    • Views: 2,012
    08-11-2008, 05:11 AM Go to last post
  38. Question Just a tiny bit of assistance

    Among U.S. households, 24&#37; have telephone answering machines. If a telemarketing campaign involves 2,500 households, find the probability that more...

    Started by chilipancakes‎, 08-12-2008 07:25 PM
    • Replies: 1
    • Views: 2,289
    08-12-2008, 09:30 PM Go to last post
  39. Mice in a maze probability puzzle

    I’ve got a probability puzzle I am trying to solve and was hoping somebody could help. It comes from some chemistry experiments I’m doing, and not...

    Started by chrisj‎, 08-08-2008 11:43 AM
    • Replies: 2
    • Views: 4,978
    08-13-2008, 10:51 AM Go to last post
  40. autoregressive

    hi folks, i am using 2nd order autoregressive for prediction. my equation is y(t)=b1 + b2*y(t-1) + b3*y(t-2). i found the coefficients b1,...

    Started by ashraf_leaf‎, 08-12-2008 10:37 AM
    • Replies: 3
    • Views: 1,904
    08-13-2008, 11:14 AM Go to last post
  41. Exclamation totally dont understand please help....

    Hi everyone, I have an exam on Friday and I just cant seem to get me head on how to answer a probability question, And because I don’t fully...

    Started by jamesryan‎, 08-12-2008 12:04 PM
    • Replies: 2
    • Views: 2,359
    08-13-2008, 03:48 PM Go to last post
  42. probability concepts

    Hi, In Devore and Farnum (Applied Statistics and Scientists and Engineers), it gives this question on p. 210: "Suppose that there is a...

    Started by Silvanus‎, 08-13-2008 12:09 AM
    • Replies: 6
    • Views: 3,535
    08-13-2008, 07:16 PM Go to last post
  43. Interesting Probability Issue Here

    Hi folks, I have an interesting probability question that has come up in a real life situation, and I'd like to pose it to you. My company is...

    Started by drarum‎, 08-13-2008 02:53 PM
    • Replies: 1
    • Views: 1,973
    08-14-2008, 02:00 AM Go to last post
  44. Question Analyzing a difference in conditional probabilities

    Hi all, I would like to compare the conditional probabilities of an animal behaving in a certain way at two different treatment types. Say the...

    Started by jhunter‎, 08-04-2008 07:03 PM
    • Replies: 4
    • Views: 2,654
    08-14-2008, 12:33 PM Go to last post
  45. The smoke you smell is my brain on STATS- Please Help

    Just a little background if you can please bear with me. I live in Japan. I retired and am now living a pretty boring life. That is until I...

    Started by jacksondesuyo‎, 08-16-2008 07:27 AM
    • Replies: 1
    • Views: 1,962
    08-18-2008, 02:42 AM Go to last post
  46. cost estimating with probability

    i'm trying to do a quick cost estimation using this monte carlo program to see how it works but i'm also trying to factor in different types of risk...

    Started by gummibear‎, 08-19-2008 05:14 PM
    • Replies: 0
    • Views: 4,101
    08-19-2008, 05:14 PM Go to last post
  47. discrete approximation of continuous probabilty

    not sure how to state this, but... assume I want to randomly generate some discrete numbers in the range 1...k but i want them to be generated...

    Started by joep‎, 08-21-2008 01:55 PM
    • Replies: 4
    • Views: 3,781
    08-21-2008, 03:59 PM Go to last post
  48. Poll

    I have made a poll and I sent it to 10 people. 8 sent me it back and 6 made me some comments. I analyse that 3 say that they like RED. What can...

    Started by viwel‎, 08-21-2008 02:38 PM
    • Replies: 2
    • Views: 2,231
    08-23-2008, 09:47 AM Go to last post
  49. Area under the sampling distribution curve

    Hi, Given a random sample size of n=10 (from a normal population) and a standard deviation of 5, how can I calculate the area under the sampling...

    Started by Silvanus‎, 08-24-2008 08:22 PM
    • Replies: 2
    • Views: 4,647
    08-25-2008, 04:11 PM Go to last post
  50. Need to find the distribution function

    I have a probability function, and I would need the distribution for it, so I can calculate confidence intervalls. A nominal variable X can take R...

    Started by Goran_L‎, 08-21-2008 03:17 AM
    • Replies: 2
    • Views: 2,811
    08-27-2008, 03:13 AM Go to last post
  51. Probabilty of picking higher number

    I am working on a webbased game, and need help with some probability. Player A rolls a 20 sided die with the numbers 1 through 20. Player B rolls...

    Started by coolant‎, 07-23-2008 06:49 PM
    • Replies: 12
    • Views: 3,554
    08-28-2008, 12:02 AM Go to last post
  52. Question if p( x|y)=p( y|x)=1

    x, y, a are all rv, and a=/x, y, p(x|a)=/0 is p(x|a)=p(y|a)? Thanks!

    Started by martinkhuu‎, 08-28-2008 06:12 PM
    • Replies: 0
    • Views: 2,386
    08-28-2008, 06:12 PM Go to last post
  53. Dice roll

    Sorry if this topic has been discussed before. I hate looking through forums randomly for an answer to a question. So, maybe one of you could help...

    Started by lookoverhear‎, 08-29-2008 07:18 PM
    • Replies: 6
    • Views: 2,633
    08-29-2008, 10:21 PM Go to last post
  54. calculation of a probability

    Hi there, I have the following problem: Suppose that: X~Exp(3) Y=bernoulli(p), where p=exp(x)/(1+exp(x)). What is P(Y=1|X>2)=??? (or...

    Started by leo nidas‎, 08-31-2008 01:47 PM
    • Replies: 2
    • Views: 2,508
    09-01-2008, 02:41 AM Go to last post
  55. de Morgan's law

    I need help. I just can't figure out where to go with this one.. For two events A and B show that: P(A intersection B) is greater than or...

    Started by tyankee‎, 09-01-2008 03:56 PM
    • Replies: 1
    • Views: 4,833
    09-02-2008, 03:12 AM Go to last post
  56. Expectation of sorted random variables

    Hi all, I'm stuck on what I thought was a simple problem that appears to be somewhat trickier than I expected, and am hoping someone can point me...

    Started by Heywood‎, 08-29-2008 07:48 AM
    • Replies: 1
    • Views: 3,140
    09-02-2008, 06:13 AM Go to last post
  57. Red face Stats probability

    A bag initially contained 4 white marbles and 9 black marbles. A marble was drawn and replaced by 2 marbles.. of the opposite colour.. Then...

    Started by Janiffer‎, 08-29-2008 02:52 AM
    • Replies: 5
    • Views: 3,839
    09-02-2008, 09:25 AM Go to last post
  58. Statistic question, what equation???

    Suppose I have these measurements: 21, 21.4, 22, 21.3, 22, 22.7, 25. What formula do I use to determine the probability that either 21.3 or 22.5 will...

    Started by Statattacker‎, 08-31-2008 10:15 AM
    • Replies: 1
    • Views: 1,793
    09-03-2008, 02:20 AM Go to last post
  59. Joint distribution of noncentral t statistics

    Hi, I need to compute a probability which is described by the joint distibution of 2 non-central t statistics. If somemody knows references...

    Started by Bel Duarte‎, 08-28-2008 08:56 AM
    • Replies: 4
    • Views: 2,470
    09-03-2008, 10:30 AM Go to last post
  60. random variable?

    A graduating senior seeking a job has interviews with two companies. After the interview, he estimates that his chance of getting an offer from the...

    Started by chrischin478‎, 09-03-2008 11:08 PM
    • Replies: 3
    • Views: 3,756
    09-04-2008, 07:10 AM Go to last post

+ Post New Thread
Page 17 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 31 32 33 34 35 36 67 ... 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