PROBABILITY
posted by JHONY on .
There are 3 lucky tickets among 10 lottery tickets. 3 tickets are
drawn at random. What is a probability that one ticket selected randomly
from those three is lucky?

This is the probability of selecting one lucky and two unlucky tickets. The probability of all events occurring is found by multiplying the individual probabilities.
3/10 * 7/9 * 6/8 = ?