In Problems 1–4, a survey of 70 college freshmen asked whether students planned to take biology, chemistry, or physics during their first year. Use the diagram to answer each question. U Biology (4 Physics 22 9 8 2 7 15 Chemistry
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.
1. How many of the surveyed students plan to take physics
during their first year?
2. How many of the surveyed students do not plan to take
biology, chemistry, or physics during their first year?
3. How many of the surveyed students plan to take only
biology and chemistry during their first year?
4. How many of the surveyed students plan to take physics or
chemistry during their first year?
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