A working class man is working for a manufacturing business has a 98% chance of correctly identifying defective items and a 1% chance of incorrectly classifying a good item as defective. The business has evidence that its line produces defective items 0.8% of the time. If an item selected at random is classified as non-defective, what is the probability that it is indeed fine?5 decimal places, please

You pay a visit to a buddy after you worked at the manufacturing business that you haven't seen in a long time. You are aware that he has two children, but you are unable to recall their genders. A young girl answers the door when you knock. What is the probability that the other child is a boy?