Birth order A survey of students in a large IntroductoryStatistics class asked about their birth order (1 = oldestor only child) and which college of the university theywere enrolled in. Here are the results:Suppose we select a student at random from this class.What is the probability that the person isa) a Human Ecology student?b) a firstborn student?c) firstborn and a Human Ecology student?d) firstborn or a Human Ecology student? Birth Order1 or only 2 or more Total CollegeArts & Sciences 34 23 57Agriculture 52 41 93Human Ecology 15 28 43Other 12 18 30Total 113 110 223

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 results: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?

Birth Order
1 or only 2 or more Total
College
Arts & Sciences 34 23 57
Agriculture 52 41 93
Human Ecology 15 28 43
Other 12 18 30
Total 113 110 223

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