Math
posted by Grace .
6 quarters, 4 dimes, 3 nickels, 10 pennies. what is the probability you will get at least one of each coin in change of 1 dollar

If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events.
6/23 * 4/22 * 3/21 * 10/20 = ?