let event A be a person needing glasses before the age of 60 and event B be a person having arthritis in their lifetime. The probability that a person will need glasses by the age of 60 is 5/7. The probability that a person will have arthritis in their lifetime is 80/90. The probability that a person will need glasses before the age of 60 and will have arthritis in their lifetime is 400/637.

a




re the events a person needing glasses before 60 and a person having arthritis in their lifetime independent?