Question

You and your friend are among 5 volunteers to help distribute workbooks. What is the probability that your teacher randomly selects you and your friend to distribute the workbooks?

Answer 1

1/10 or 10%

Explanation:

Volunteer one, two, three, four and five

There are many pairings, they are;

One + two,

One + three,

One + four,

One + five,

Two + three,

Two + four,

Two + five,

Three + four,

Three + five,

Four + five.

This means there are 10 possible pairings.

This shows that the chances both you and your friend will be chosen is 1/10

Hope that helped :)