Question

Of the 10 people attending a seminar, 5 have gray hair.

What is the probability that a randomly selected person will have gray hair?

Answer 1

1/2 of the people have gray hair

Answer 2

1/2

Explanation:

So we know that there is a total of 10 people.

5 of these have grey hair.

To find the chances of a somone having grey hair, we need to divide people with grey hair over total people:

`(value)/(total) =probability`

This is the same division we use to find things such as percentage and ratio as well.

Now lets plug in our numbers and solve:

`(5)/(10)=(1)/(2)`

So half of the people have grey hair.

Or(in percentage):

The probability is 50% that someone will have grey hair.

Hope this hepls!