The true probability of a baby being a girl is 0.475. What is the probability that at least one is a boy?

The probability that at least one is a boy is 0.525

Step-by-step explanation:

P (Baby being a girl) = 0.475

Now, if A is any arbitrary event. Then:

as we know P (A) + P (not A) = 1

⇒ P (A not happening) = 1 - P (A event happening)

Also, P (baby not being a girl) = P (baby being a boy)

So, P (baby being a boy) = 1 - P (baby being a girl)

= 1 - 0.475 = 0.525

Hence, the probability that at least one is a boy is 0.525