Combinations

[blazing lava]

can someone tell me how to do part b

[blazing lava]

<@&791435371564892232>

[loud sequoia]

because ur given that there are already at least 2 males and already at least 2 females

its just gonna be the probability that there is another male and no other females

[dense mirage]

So it's a 100% chance that 2 males and 2 females are in. That means you need to find the probability that the last person will be a male instead of a female

[blazing lava]

how do i work that out?

<@&791435371564892232>

[dense mirage]

1am

So you only consider the last choice between a man and a woman

[dense mirage]

7 men are left and 4 women are left as 2 from each have been taken to fill the quota. The total people left is 11, so the probability that it consists of 3 men and 2 women is 7/11

= 0.636363...

[blazing lava]

ahh i see thank u

[blazing lava]

ohh where did u get the 7 from?

[dense mirage]

9-2