Probaility with poker (1 Viewer)

[LaCe]

what is the probability in poker with a hand of five of getting
a) one pair?
b) two pair?
c)straight?
d) flush?
e) three of a kind?
f) 4 of a kind
g) royal flush?

for a i have tried:

(52.3.48.44.40)/52C5

but this is not the answer in the book

It is question 22 section 10H of Cambridge 3u

Cheers

 

[Templar]

Just an advice that if you need all the answers, it might be best to work from the bottom up so you can use those probabilities later on when they need to be excluded.