14 or more hours 237 10 or less hours 386 423 153 103 11-13 TO TALS 797 hours Freshmen 174 Sophomores Juniors Seniors TO TALS 332 360 1.115 325 276 1,135 57 635 494 115 841 1,065 |3,041
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.
The table below gives information, broken down by year in college, about the number of credit hours for which students are enrolled. What is the probability that a student at random is a sophomore or is taking between 11 to 13 hours? Round to two decimal places.
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