Question

Mattias gets dressed in the dark one morning and chooses his clothes at random. He chooses a shirt (green, red, or yellow), a pair of pants (black or blue), and a pair of shoes (checkered or red). The following shows a tree diagram that shows the sample space:

What is the probability that no part of Mattia's outfit is red?
1/5

1/2

1/4

1/3

Answer 1

1/2 is the probability.

Answer 2

1/3
there’s 12 possible outfits
4 of which have no red
so 4/12 but simplified would give you 2/6 then 1/3