Answer: 0.25
Step-by-step explanation:
Event of winning Dan or Freddie are both independent.
For independent events A and B , P(A and B)= P(A). P(B)
Since, P(Dan win)= 0.50 and P(Freddie win)= 0.50
So, P(both Dan and Freddie win) = P(Dan win) . P(Freddie win)
= (0.50)(0.50) =0.25
Hence, the required probability = 0.25