Question

Two students are chosen at random from a class of 30. what is the probability that both you and your best friend are chosen?

Answer 1

Hey there!

$\dfrac{1}{30} \times \dfrac{1}{29} \\ = \dfrac{1}{870}$

Answer is 1/870, or in decimal form 0.0011.

Hope this helps. - M

Answer 2

So only 2 or being chosen. 

The chance of you being chosen is 1 out of 30 

And on the second choice, the chance of you being chosen is 1 out of 29

so we multiply them to get the answer:

(1/30)(1/29) = 

1/870

The chance that you and your bestie are chosen is 1 out of 870 possibilities.