SOLUTION: how to solve this problem an urn contains 6 red, 4 blue, 2 green, 3 yellow marbles. if 4 marbles are picked at random , what is the probability that at least one is blue
Algebra.Com
Question 478461: how to solve this problem an urn contains 6 red, 4 blue, 2 green, 3 yellow marbles. if 4 marbles are picked at random , what is the probability that at least one is blue
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
how to solve this problem an urn contains 6 red, 4 blue, 2 green, 3 yellow marbles. if 4 marbles are picked at random , what is the probability that at least one is blue
---
P(at least one blue) = 1 - P(none is blue)
----
= 1 - [11C4/15C4]
----
= 1 - [330/1365]
=====================
Cheers,
Stan H.
RELATED QUESTIONS
An urn contains 4 green , 5 blue , 2 red and 3 yellow marbles . If four marbles are drawn (answered by Edwin McCravy)
an urn contains 4 green, 5 blue, 2 red and 3 yellow marbles
so if eight marbles are... (answered by ewatrrr)
A bag contain 6 red, 4 blue, 2 green and 3 yellow marbles.
If four marbles are picked... (answered by AnlytcPhil)
an urn contains 3 red marbles and 1 green marbles. if 2 marbles are selected at random... (answered by stanbon)
A box contains 9 red marbles, 8 green marbles, 5 yellow marbles, and 2 blue marbles. If 3 (answered by ewatrrr)
An urn contains 4 green marbles, 10 yellow marbles and 6 red marbles. What fraction of... (answered by chessace)
26
In an urn I have 20 marbles: 2 red, 3 yellow, 4 blue, 5 green, and 6 black marbles.... (answered by greenestamps)
An urn contains 8 red marbles, 5 blue marbles and 4 green marbles. What is the number of (answered by aryanjee)
I have a problem with question: an urn contains 7 red, 5 blue, and 6 green marbles. If... (answered by mathmate)