Question

A three-digit number is chosen at random. Is the probability that the number contains at least one zero given by `171/900`?

Answer 1

Yes.

Explanation:

Between 100 and 199 there are 19 numbers having a zero. Likewise, between 200 and 299, there are 19, and so on, for nine such sets of values.

So, the number of numbers with a zero will be 171 (19 x 9)

Since there are 900 numbers in total, the probability is `171/900`