anonymous
  • anonymous
A bag of marbles contains 8 red marbles and 5 green marbles. Three marbles are drawn at random at the same time. Find the probability that all three are red.
Mathematics
  • Stacey Warren - Expert brainly.com
Hey! We 've verified this expert answer for you, click below to unlock the details :)
SOLVED
At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.
jamiebookeater
  • jamiebookeater
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
anonymous
  • anonymous
8 out of 13
anonymous
  • anonymous
\[{{8 \choose 3}\over {13 \choose 3}}\]
anonymous
  • anonymous
I assume you're familiar with choose notation.

Looking for something else?

Not the answer you are looking for? Search for more explanations.

More answers

anonymous
  • anonymous
Who me?
anonymous
  • anonymous
Well either you, or the original poster. Whomever wants to read/understand my answer.
anonymous
  • anonymous
it's not 8 out of 13 though. That'd be about 61 percent
anonymous
  • anonymous
Well yours is eight thirds over thirteen thirds right?
anonymous
  • anonymous
no. it's choose notation. \[{n \choose k} = {n! \over k!(n-k)!}\]
anonymous
  • anonymous
Ok yepp then i have no clue lol
anonymous
  • anonymous
that's ok. it's a fun thing to learn about.
anonymous
  • anonymous
I'd rather stay away from the complicated stuff if you can do it the easy way i choose that.
anonymous
  • anonymous
Basically it boils down to : How many different ways can we pick 3 red marbles from a set of 8 red marbles. Then we divide that by the number of different ways we can choose 3 marbles from a bag of 13 marbles.
anonymous
  • anonymous
mhm.. I did that in like 4th grade so i really dont remember it lol
anonymous
  • anonymous
I'm not sure it's the same as what you're remembering.. But in any case there are 56 different ways you can pick 3 red marbles from a set of 8 red marbles.
anonymous
  • anonymous
And there are 286 ways you can pick any 3 marbles from a bag of 13 marbles.
anonymous
  • anonymous
ugh huh..
anonymous
  • anonymous
so 56/286 = .1958 or 19.6%
anonymous
  • anonymous
Is the probability you will grab exactly 3 red marbles.
anonymous
  • anonymous
I get it now, thank you.
anonymous
  • anonymous
This function is often built into calculators as the C function
anonymous
  • anonymous
Are you really smart brain wise or calculator wise or just incredibly smart period?
anonymous
  • anonymous
hrm.. tough one to answer. Probably I have just taken a lot of math classes. ;)
anonymous
  • anonymous
Oh mmk i see.

Looking for something else?

Not the answer you are looking for? Search for more explanations.