Question: Birth order. A survey of students in a large Introductory Statistics class asked about their birth order (1 = oldest or only child) and which college of the university they were enrolled in. Here are the data:
Suppose we select a student at random from this class.
a) What is the probability we select a Human Ecology student?
b) What is the probability that we select a firstborn student?
c) What is the probability that the person is firstborn and a Human Ecology student?
d) What is the probability that the person is firstborn or a Human Ecology student?