A university conducted a survey of 384 undergraduate students regarding satisfaction with student government. Results of the survey are shown in the table by class rank. Complete parts​ (a) through​ (d) below. LOADING... Click the icon to view the table. Freshman Sophomore Junior Senior Total   Satisfied 51 55 66 58 230     Neutral 25 20 20 12 77     Not satisfied 19 19 16 23 77     Total 95 94 102 93 384   ​(a) If a survey participant is selected at​ random, what is the probability that he or she is satisfied with student​ government?   ​P(satisfied)=nothing ​(Round to three decimal places as​ needed.) ​(b) If a survey participant is selected at​ random, what is the probability that he or she is a​ junior?   ​P(junior)=nothing ​(Round to three decimal places as​ needed.) ​(c) If a survey participant is selected at​ random, what is the probability that he or she is satisfied and a​ junior?   ​P(satisfied and ​junior)=nothing ​(Round to three decimal places as​ needed.)

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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.