The two-way table summarizes data on whether students at a certain high school eat regularly in the school cafeteria by grade level. Grade 9th 10th 11th 12th Total Yes 130 175 122 68 495 Eat in cafeteria? No 18 34 88 170 310 Total 148 209 210 238 805 a. If you choose a student at random, what is the probability that the student eats regularly in the cafeteria and is not a 10th-grader? b. If you choose a student at random who eats regularly in the cafeteria, what is the probability that the student is a 10th-grader? c. Are the events "10th-grader" and "eats regularly in the cafeteria" independent? Justify your answer. nd “ea
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.
A if we choose a student at random, what is the
b if you choose a student at random, what is the probability he or she eats regularly in the cafeteria given that he or she is in 10th grade?
c if you choose a student at random, are the
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