Answer:
The answer is (d) "None of the these alternatives are correct"
Step-by-step explanation:
If two events A and B are independent, the probability of the intersection [tex]P(A\cap B)[/tex] is defined as:
[tex]P(A\cap B)=P(A)\cdot P(B)[/tex]
Therefore, in the exercise:
[tex]P(A\cap B)=P(A)\cdot P(B)=0.5\cdot 0.5\\P(A\cap B)=0.25[/tex]
which give (d) "None of the these alternatives are correct"