ggrree
  • ggrree
I'm feeling a bit rusty with probabiliy. Could somebody quickly explain to me how to use permutations and combinations? I understand what they mean, but I'm confused at what the xPy or the xCy notation means( where x and y are numbers.
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.
schrodinger
  • schrodinger
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
anonymous
  • anonymous
\[ \large xPy = ^xP_y = \frac{x!}{(x-y)!} \] \[ \large xCy = ^xC_y = \frac{x!}{y! \times (x-y)!} \] where \( x,y \in \mathbb{N} \)
anonymous
  • anonymous
xPy: It means that there are (x) objects going into (y) categories, order matters (ie) (x) different cars competing for (y) places in a race: xPy xCy: It means there are (x) objects going into (y) categories, but order DOES NOT matter: ie) (x) different cars competing for (y) identical parking spots
anonymous
  • anonymous
Just remember "Permutation" is counting the different ways something can "Permeate" so order matters. "Combination" is counting different ways to combine the same things so order does not matter.

Looking for something else?

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

More answers

anonymous
  • anonymous
right ...switched this two
anonymous
  • anonymous
|dw:1330816685116:dw|

Looking for something else?

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