...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:

How U Can Answer It The Way Of Solving?
Two Numbers Multiply Together To Make 8, But Add Together To Make -6 What Are The Two Numbers?
Planes In Maths
Acooldude63: A Man Spends 75% Of His Income, When His Income Is Increased By 20%, He Increases His Expenditure By 10%. By How Much Per Cent Are His Savings Increased
Probability Question?