Question

Compute the probability of being dealt a straight flush.

• A. $\frac{4}{{}^{52}{C}_4}$
• B. $\frac{4}{{}^{52}{C}_5}$
• C. $\frac{40}{{}^{52}{C}_4}$
• D. $\frac{40}{{}^{52}{C}_5}$

Answer 1

The correct option is D $\frac{40}{{}^{52}{C}_5}$

If we are dealt five cards, there are $4\times 10=40$

possible straight flushes out of the ${}^{52}{C}_5$ possible hands. So probability will be $\frac{40}{{}^{52}{C}_5}$.