Suppose that we have found that the word “Rolex” occurs in 100 of 1000 messages known to be spam and 25 of 1000 messages known not to be spam. Estimate the probability that an Incoming message containing the word “Rolex” is spam, assuming that 45% of incoming message is spam and 55% of incoming message is not spam. If our threshold for rejecting a message as spam is 0.9, will we reject such messages?
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.
Suppose that we have found that the word “Rolex” occurs in 100 of 1000 messages known to be spam and 25 of 1000 messages known not to be spam. Estimate the
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