The number of new categories added each year to a major engineering handbook has been found to be a random variable, unaffected by the size of the handbook and its recent history. The probability that no new categories will be added in the annual update is 0.15. This year’s edition of the handbook contains 95 categories. i. How many categories is the next edition expected to contain? ii. What is the probability that the edition two years from now will contain fever than 98 categories?
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 number of new categories added each year to a major engineering handbook has
been found to be a random variable, unaffected by the size of the handbook and its recent
history. The probability that no new categories will be added in the annual update is 0.15.
This year’s edition of the handbook contains 95 categories.
i. How many categories is the next edition expected to contain?
ii. What is the probability that the edition two years from now will contain fever than
98 categories?
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