The Registrar’s office is trying to decide if Professor Woodburne is a serial killer. The office believes that student mortality in Dr. Woodburne’s Stat 1 class follows a binomial distribution. The office says that historically 4% of students taking Woodburne’s Stat 1 class are dead by the end of the semester. From a random selection of 4 of his students what is the probability that at most 1 is dead at the end of the semester? (Hint: what is a “success”here)? b) From a random selection of 40 students from Woodburne’s Stat 1 class, what is the expected number of students alive after they finish Stat 1? What are the variance and standard deviation? (Hint: what is a “success” here)?
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 Registrar’s office is trying to decide if Professor Woodburne is a serial killer. The office
believes that student mortality in Dr. Woodburne’s Stat 1 class follows a binomial
distribution. The office says that historically 4% of students taking Woodburne’s Stat 1 class
are dead by the end of the semester. From a random selection of 4 of his students what is the
probability that at most 1 is dead at the end of the semester? (Hint: what is a “success”here)?
b) From a random selection of 40 students from Woodburne’s Stat 1 class, what is the expected
number of students alive after they finish Stat 1? What are the variance and standard
deviation? (Hint: what is a “success” here)?
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