## Trending News

Promoted

Anonymous

# probability problem?

Three students bring identical umbrellas to class and leave them in a pile by the door. When they leave, they each just grab a random umbrella.

What is the probability that no one gets their original umbrella?

### 2 Answers

Relevance

- Ian HLv 72 months agoFavorite Answer
Let a, b, c be the correct umbrellas for the people below. Options are

A B C

a, b, c

a, c, b

b, a, c no one has correct umbrella

b, c, a no one has correct umbrella

c, a, b,

c, b, a

Probability = 1/3

- 2 months ago
33.333333% (1/3)

There are 6 combinations total, and out of those 2 have each student picking up a different umbrella than carried in

Still have questions? Get your answers by asking now.