Bob and Alice are expecting triplets. Assume that the probability of each child being born a boy is 0.4, and the gender of each of the children is independent of the others. Suppose events A and B are defined as follows. Are A and B independent?
Carry at least 3 decimals in your calculations.

A - Bob and Alice have children of both sexes
B- Bob and Alice have at most one girl (Hint: Use one of the equations for independence to answer the question Calculate the right side, calculate the left side, and see if they are equal)

Events A and B are not independent.

Step-by-step explanation:

In order for two events to be independent, the following relationship must be true:

The intersection between events A and B is the outcome that Bob and Alice have exactly one girl, the probability is:

For event A, the possible outcomes are having one or two girls:

For event B, the possible outcomes are having none or one girl:

Therefore, P(A) x P(B) is:

Since P(A) x P(B) ≠ P(A∩B), events A and B are not independent

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step-by-step explanation: