Are A 3 and A 4 mutually exclusive Consider a family with a mother, father, and two children Let A 1 mother has influenza , A 2 father has influenza , A 3 first child has influenza , A 4 second child has influenza , B at least one child has influenza , C at least one parent has influenza , and D at...

Are A 3 and A 4 mutually exclusive? Consider a family with a mother, father, and two

Question:

Are A₃ and A₄ mutually exclusive?

Consider a family with a mother, father, and two children. Let A₁ = {mother has influenza}, A₂ = {father has influenza}, A₃ = {first child has influenza}, A₄ = {second child has influenza}, B = {at least one child has influenza}, C = {at least one parent has influenza}, and D = {at least one person in the family has influenza}.