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...

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. What is the probability that the person is

a) a Human Ecology student?

b) a firstborn student?

 c) firstborn and a Human Ecology student?

 d) firstborn or a Human Ecology student?