Question: What is the probability that a seven-card poker hand contains
a) four cards of one kind and three cards of a second kind?
b) three cards of one kind and pairs of each of two different kinds?
c) pairs of each of three different kinds and a single card of a fourth kind?
d) pairs of each of two different kinds and three cards of a third, fourth, and fifth kind?
e) cards of seven different kinds?
f ) a seven-card flush?
g) a seven-card straight?
h) a seven-card straight flush? An octahedral die has eight faces that are numbered 1 through 8.