Question

A classmate walks into class and states that he has an extra ticket to a chamber orchestra concert on Friday night. He asks everyone in the class to put their name on a piece of paper and put it in a basket. He plans to draw from the basket to choose the person who will attend the concert with him. If there are 38 other people in class that night, what is your chance of being chosen to attend the concert

Answer 1

2.56% chance of being selected

Explanation:

Given

`n = 39` --- you and 38 others

Required

Chance of you being selected

To do this, we simply calculate the probability using:

`Pr(x) = (n(x))/(n)`

Where:

`n(x)= 1` --- i.e you are just 1 person

So:

`Pr(x) = (1)/(39)`

`Pr(x) = 0.0256`

Express as percentage

`Pr(x) = 2.56\%`