Atsi arrives at a point with three roads. The first road brings him back to the same point after two hours of walk. The second road brings him back to the same point after four hours of travel. The last road leads to the city after three hours of walk. If every time, Atsi chooses one of three roads with equal probability, what is the expected time (in hours) until he arrives to the city?
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.
Atsi arrives at a point with three roads. The first road brings him back to the same point after two hours of walk. The second road brings him back to the same point after four hours of travel. The last road leads to the city after three hours of walk. If every time, Atsi chooses one of three roads with equal probability, what is the expected time (in hours) until he arrives to the city?
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