...Beauty, cleaning, DIY tips and more - free to join!
   Login   Contact us   Site map   Puzzle Club   Ask a question    Newsletter

Find the probability.

There are 4 purple, 4 gray, 2 green, and 3 navy marbles in a hat. You pick 2 marbles from the hat. Marbles are not returned after they have been drawn. P(the first marble is navy and the second marble is not green)
Question asked by: mrpulley

Asked on: 01 Feb 2011

So there are 13 marbles in the hat. And you pick two. The chance the first is navy is therefore 3/13 and then it is not returned so on the second the chance is out of 12 so therefore that the second being not green is then 10/12

Multiply them together to get the chance of the combined probability to get 0.192

By: knowitall
Replied at: 05 Feb 2011
Rate Answer
Comment or provide your answer to this question
No comments have been added to this question "Find the probability.".
Ask a New Question

Find out more about Maths

Maths Questions and Answers

probability Questions and Answers

Next question: 7 courses = 100% , if 9 courses = ??%


Become a Member! It's Free >>>

Share on Facebook: On Twitter: TwitterTweet this!

Question Keywords

probability  

More Questions:

Find The Remainder.
In A A SUDOKU Game Of 9X9 How Many Possibilities Of Combinations Are There ?
A Drawer Contains 50 Bolts And 150 Nuts.half Of Bolts And Half Of Nuts Are Rusted.if One Is Chosen At Random,what Is The Probability Of That Is Rusted Or Bolt.
Find The Value Of X Which Gives Sinx=logx
How Can We Get 10 Using 4 Times 9