Question

A jar of sweet contains 5 yellow sweets, 4 red sweets, 8 green sweets, 4 orange sweets and 3 white sweets. Ola chose a sweet at random, what is the possibility that she will pick either a yellow or orange sweet?

Answer 1

9/24 or 37.5%

hope this helps :)

Answer 2

Hi,

first thing you must do with a probability problem is to count how many thing you have in your universe.

Here we are dealing with sweets. So let's count : 5 +4+8+4+3 = 24

and there is 5 yellow so probability to pick up a yellow is 5/24

and there is 4 orange so probabilitu to pick up a orange is 4/24

To say : Ola will pick orange or yellow mean if she pick either one of the two sort is good. So you add the proba of each : 5/24 +4/24 = 9/24

and then you must reduce if you can : 9/24 = 3*3 /8*3 = 3/8

So the probability that Ola pick a yellow or orange sweet is 3/8 = 0.375