1. in a group of 100 moviegoers, 40 people like cats, 20 people like dogs, and 8 people like both cats and dogs. what is the probability that a randomly selected person from this group likes cats but not dogs? 2. in a class of 25 kids, 10 kids like math and 15 like chemistry. what is the probability that a student NIETHER likes math NOR biology?
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. in a group of 100 moviegoers, 40 people like cats, 20 people like dogs, and 8 people like both cats and dogs. what is the
2. in a class of 25 kids, 10 kids like math and 15 like chemistry. what is the probability that a student NIETHER likes math NOR biology?
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