Question

a number is drawn from a box containing one slip of paper for each of the digits 0 through 9.
What is the probabolity that the number drawn will be 12?

Answer 1

if each slip of paper has a digit ffrom 0 to 9, if you pick one slip of paper the chance of the number drawn come on it will be 0%.
if you can pick 2 slips and get the number 12( first pick number 1 and than pick number 2), the chance is
1/10 * 1/9