Re: Help! Some Questions of Discrete Probability Distribution

On Thu, 14 May 2009 12:51:13 EDT, Tzskan Cheung <tk3565@xxxxxxxxxxx>
wrote:

How to answer this question?and i have no idea use Binomial Distribution or Poisson Distribution.
Please help me to answer.Thankyou

When it comes to homework, the sci.stat.math readers will often
offer help when someone tells us some *point* at which they
have stumbled, and offer us what they have done so far.

Beyond that, we should offer you generic advice like this --

a) Do some online research. Wikipedia has nice essays.
b) Read the relevant chapters in some basic statistics books.
Sometimes a new book has a better slant. Sometimes the simple
fact of repetition finally helps the ideas come through.


Q1)The city bank has recently begun a new credit program. Customers meeting certain credit requirements can obtain a credit card accepted by participating merchants that carries a discount. Past numbers showed that 25% of all applicants for this card were rejected.
Given the credit acceptance or rejection is a bernoulli process, out of 15 applicants, what is the probability that:

a)Exactly Four will be rejected?
b)Fewer that Four will be rejected?
c)More than Four will be rejected?
d)At least Four will be rejected?
e)Exactly Four will be accepted?


Q2)In average a telephone operator receives 15 calls every 5 mins. Find the probability that NOT MORE THAN ONE call will be received in ONE minute.

Thankyou

--
Rich Ulrich
.

Relevant Pages

  • Re: Model Rejection
    ... Clearly if the probability of either class comes out below 2.5% or ... not allow rejection the combination of all of them still allows ... and a nondesign test set. ... with an accurate estimation of model parameters ...
    (sci.stat.math)
  • Re: What does the p-value mean
    ... incorrectly rejecting is a long-run property of the test procedure. ... It is not affected at all by a particular p-value. ... If, in a particular trial, your p-value is less than .05, then yes, your observed data fall in the rejection region, and that region has been defined to give the test procedure a 5% probability of false rejection. ... If you reject the null when your p-value is less than .05, then you have a 5% probability of being wrong _if the null is indeed the truth_. ...
    (comp.soft-sys.matlab)
  • Help! Some Questions of Discrete Probability Distribution
    ... How to answer this question?and i have no idea use Binomial Distribution or Poisson Distribution. ... Given the credit acceptance or rejection is a bernoulli process, out of 15 applicants, what is the probability that: ... Q2)In average a telephone operator receives 15 calls every 5 mins. Find the probability that NOT MORE THAN ONE call will be received in ONE minute. ...
    (sci.stat.math)