## cwrw238 Group Title There are 5 keys. Each one will open one of five cars. If i pick one of the keys at random and try to open one of the cars what is the probability that its the right key? 2 years ago 2 years ago

1. mukushla Group Title

1/5 ?

2. cwrw238 Group Title

right - you guys are pretty good - most people say its 1/25

3. cwrw238 Group Title

- it doesn't matter which key you pick

4. UnkleRhaukus Group Title

$\langle x\rangle=\frac{1/5}{1}=\frac 15$