if you took ten marbles and number them 1 to 10, and all of them were of different colours,

and you put them inside of a bag, and shook the bag. And closing your eyes, reach inside the bag and I told you, pull out marble number 1. And then pull out marble number 2. And then pull out marble number 3, in order! What's the chance of your pulling out the marbles in order? Do you know what the chances are?

Top | Newest First | Oldest First

bookerdana · M Best Comment

I got 1/14,515,2000

bookerdana · M

@bookerdana factorial 10,thanks for BA

newjaninev2 · 56-60, F

If you don't replace a marble after it has been drawn, then it's:
1/10 * 1/9 * 1/8 * 1/7... and so on down to 1/1

The chance of drawing them in numerical order is exactly the same as the chance of drawing them in [i]any[/i] order

ProdigalSummer · F

Do you put the marbles back in after drawing?

I could figure it out either way, but my brain is too tired.

Hayman

It's Twenty-six million to one! (26,000,000 :1).

SW-User

1 in 100000

NudasPriest · 46-50, M

1 in 3628800

reflectingmonkey · 51-55, M

ya, that's what I got@NudasPriest

Add a comment...