Question

Each number from one to 10 is written on an identical slip of paper. All of the slips of paper are placed in a bag.

2/10
2/8
1/4
1/5

What is the theoretical probability of picking a slip of paper that has a multiple of four on it?

Answer 1

from 1 to 10, there are 2 multiples of 4, \(\{4,8\}\). So two options

you can pick form 10 pieces of paper

so the probability of getting a multiple of 4 is \(\dfrac{2}{10}\) or \(\dfrac{1}{5}\)