SOLUTION: An urn has 10 balls that are identical except that 5 are white and 5 are red. A sample of 6 is selected randomly without replacement.
What is the probability that exactly 4 are wh
Algebra.Com
Question 1153114: An urn has 10 balls that are identical except that 5 are white and 5 are red. A sample of 6 is selected randomly without replacement.
What is the probability that exactly 4 are white and 2 are red?
Answer by ikleyn(52847) (Show Source): You can put this solution on YOUR website!
.
The probability P = .
----------------
This problem is on COMBINATIONS.
On Combinations, see introductory lessons
- Introduction to Combinations
- PROOF of the formula on the number of Combinations
- Problems on Combinations
- OVERVIEW of lessons on Permutations and Combinations
in this site.
Also, you have this free of charge online textbook in ALGEBRA-II in this site
- ALGEBRA-II - YOUR ONLINE TEXTBOOK.
The referred lessons are the part of this online textbook under the topic "Combinatorics: Combinations and permutations".
Save the link to this textbook together with its description
Free of charge online textbook in ALGEBRA-II
https://www.algebra.com/algebra/homework/complex/ALGEBRA-II-YOUR-ONLINE-TEXTBOOK.lesson
into your archive and use when it is needed.
RELATED QUESTIONS
An urn has 6 balls that are identical except that 3 are white and 3 are red. A sample of... (answered by rothauserc)
An urn has 21 balls that are identical except that 5 are white, 9 are red, and 7 are... (answered by ikleyn,greenestamps)
An urn has 7 balls that are identical except that 3 are white and 4 are red. A sample of... (answered by MathLover1,ikleyn)
An urn has 7 balls that are identical except that 3 are white and 4 are red. A sample of... (answered by stanbon)
There are three urns that each contain 10 balls. The first contains 3 white balls and 7... (answered by scott8148)
a box contains 6 identical red balls, 3 identical white balls and 5 identical black... (answered by Edwin McCravy)
A bag containing 14 identical balls, 4 of which are red, 5 black and 5 white,6 balls are... (answered by ikleyn)
An urn contains 900 balls of which 300 are white, 200 are red, and the rest are blue.... (answered by stanbon)
An urn contains 4 white balls and 6 red balls. A second urn contains 6 white balls and 4... (answered by greenestamps,math_tutor2020)