Question

There are 10 yellow, 6 green, 9 orange, and 5 res cards in a stack of cards turned face down. once a card is selected, it is not replaced. determine each probability.

p(2 yellow cards)​

Answer 1

10+6+9+5= 40

So there are

`(10)/(40)` are yellow cards
`(6)/(40)` are green cards
`(9)/(40)` are orange cards
`(5)/(40)` red cards

now we have to get the percentages

`(10)/(40)` =
`(25)/(100)`

`(6)/(40)` =
`(15)/(100)`

`(9)/(40)` =
`(22.5)/(100)`

`(5)/(40)` =
`(12.5)/(100)`

so the probability of getting...

yellow is 25%

green is 15%

orange is 22.5%

red is 12.5%