SOLUTION: a box contains 24 transistors, 4 of which are detective if 4 are sold at random . find the following possibilities a)exactly 2 are not detective b)all are not detective c)none is d

Algebra ->  Probability-and-statistics -> SOLUTION: a box contains 24 transistors, 4 of which are detective if 4 are sold at random . find the following possibilities a)exactly 2 are not detective b)all are not detective c)none is d      Log On


   

Question 1175388: a box contains 24 transistors, 4 of which are detective if 4 are sold at random . find the following possibilities a)exactly 2 are not detective b)all are not detective c)none is detective d)almost 1 is detective.
Found 2 solutions by ikleyn, ewatrrr:
Answer by ikleyn(52778) About Me  (Show Source):
You can put this solution on YOUR website!
.

        D U P L I C A T E



I just solved it under the link

https://www.algebra.com/algebra/homework/Probability-and-statistics/Probability-and-statistics.faq.question.1175389.html

https://www.algebra.com/algebra/homework/Probability-and-statistics/Probability-and-statistics.faq.question.1175389.html


I answered questions (a) and (b) and noticed in that my post that question (c) is the same as (b)
and your question (d) makes no sense.

So PLEASE stop posting unnecessary duplicates.



//////////////

        The solution by @ewatrrr is  ABSOLUTELY  WRONG.

        This problem  IS  NOT  on binomial distribution.


        I repeated it  MANY  TIMES  at this forum and can repeat it again:

    This women chronically can not solve combinatoric problems,
    as well as elementary probability problems.
    She does not know the subject and does not know the basics.

    Avoid her posts on the subject (combinatorics and elementary probability).
    They practically ALL are wrong (!)

    Concretely in this case, ignore her solution (!)

Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!

Hi

As You work Your way thru statistical analysis, Have hope!  
Binomial, Normal and Poisson Distributions are on the way!
Distributions one can easily use their calculator as a very good friend.

Events outlined here were not Independent of each other,  as is a criteria for
Binomial distribution.  It entertains Events like coin flipping, rolling dice,
 wheel spins, shooting baskets and many similar.


Wish You the Best in your Studies.