Down syndrome is a common chromosomal abnormality caused by an extra copy of genes found on chromosome 21. It affects on average 1 out of 900 new born babies. What is the probability that at most 3 births inherit this condition, given that oln average there are 4,775 babies born in the Philippines per day? Let X denote the diameter of cylindrical molds and Y denote the inside diameter of a given cable. Both events are scaled that they range between 0 and 1. If the joint density function is given by the equation below. Find P(X+Y>O.50) 1 0. elsewhere