Birth Order* 2 3 4+ Total Math/Science 34 14 3 57 Agriculture 52 27 93 Humanities 15 17 8 3 43 Other 12 11 1 6 30 Total 113 69 21 223 *1 = oldest or only child %3D 65 20 Major
Contingency Table
A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.
Binomial Distribution
Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.
Birth order Is your birth order related to your choice of
major? A Statistics professor at a large university polled
his students to find out what their majors were and what
position they held in the family birth order. The results
are summarized in the table.
a) What percent of these students are oldest or only
children?
b) What percent of Humanities majors are oldest
children?
c) What percent of oldest children are Humanities
students?
d) What percent of the students are oldest children
majoring in the Humanities?
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