Answer:
C. Children have much greater chance of having side effects than adults.
Step-by-step explanation:
It is known that the conditional probability for two events A and B is given by,
[tex]P(A|B)=\frac{P(A\cap B)}{P(B)}[/tex].
Then, according to the table, we have,
[tex]P(sideeffects|child)=\frac{P(sideeffects\cap child)}{P(child)}[/tex]
i.e. [tex]P(sideeffects|child)=\frac{20}{50}[/tex]
i.e. [tex]P(sideeffects|child)=0.40[/tex]
Moreover,
[tex]P(sideeffects|adult)=\frac{P(sideeffects\cap adult)}{P(adult)}[/tex]
i.e. [tex]P(sideeffects|adult)=\frac{6}{50}[/tex]
i.e. [tex]P(sideeffects|adult)=0.12[/tex]
As 0.40 > 0.12.
Children have more chances of having side effects than adults.
Hence, option C is correct.
