Let [tex] A [/tex] and [tex] B [/tex] be two events. Then
[tex] P(A \cup B)=P(A)P(B) [/tex].If the events are independent. Here
Let [tex] A=\{a\; fan \;brings\; a \;glove\},B=\{a\; fan \;is\; a \;left-handed\} [/tex].
Then, the probability that a randomly selected fan has a baseball glove and is left-handed is
[tex] P(A \cup B)=0.08*0.12=0.0096 [/tex]