Question: Birth order, finis. In Exercises 6 and 12 we looked at the birth orders and college choices of some Intro Stats students. For these students:

a) Are enrolling in Agriculture and Human Ecology disjoint? Explain.

b) Are enrolling in Agriculture and Human Ecology independent? Explain.

c) Are being firstborn and enrolling in Human Ecology disjoint? Explain.

d) Are being firstborn and enrolling in Human Ecology independent? Explain.

Birth Order

1 or only 2 or more Total

Arts & Sciences 34 23 57

Agriculture 52 41 93

Human Ecology 15 28 43

Other 12 18 30

Total 113 110 223