In your biology class, your final grade is based on several things: a lab score, scores on two major tests, and your score on the final exam. There are 100 points available for each score. However, the lab score is worth 23% of your total grade, each major test is worth 22%, and the final exam is worth 33%. Compute the weighted average for the following scores: 74 on the lab, 61 on the first major test, 72 on the second major test, and 88 on the final exam.
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.
Weight are given by,
Wi: 23% 22% 33% (100-23-22-33)= 22%
=> 0.23 , 0.22, 0.33 0.22
Scores,
Xi: 74, 61, 72, 88
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
