Question: Ten dice are rolled. Write down numerical expressions for
a) the probability that exactly 4 dice are sixes.
b) the probability that exactly 4 dice are sixes given that none of the dice is a fie.
c) The probability of 4 sixes, 3 fives, 2 fours, and a three.'
d) The probability that none of the first three dice is a six given 4 sixes among the ten dice.