b. What is the probability that an individual in this sample has length of residence greater than 5 years, and less than 20 years? c. What is the probability that out of 7 randomly selected individuals at least 2 will have length of residence less than five years?
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. Using Excel let us plot the probabilities.
After plotting the probabilities we calculate the median, with “MEDIAN” command, and select the rows of the cumulative probabilities.
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