Answer:
The answer is "0.0019808"
Step-by-step explanation:
[tex]\to \text{P(deall a flush) =P(select one of 4 suits and then select 5 out of 13 cards from this suit)}[/tex]
[tex]=(4\ C_1)\times \frac{(13\ C_5)}{(52\ C_5)} \\\\=4\times \frac{1287}{2598960}\\\\=0.0019808[/tex]