58% of customers at the snack counter of a movie theater buy soft drinks. Among those who buy soft drinks, 18% also purchase popcorn. What is the probability that a customer at the counter buys a drink and popcorn? Theaters use this type of calculation to decide which products should be bundled to appeal to Based on the probability so calculated, what is your recommendation customers. Whether to bundle the products or not? If the proportion of customer who buys popcorn is 12% . Then find the probability that a customer will buy a popcorn or a soft drink? Some electronic devices are better used than new: The failure rate is higher when they are new than when they are six months old. For example, 51.20% of the personal music players of a particular brand have a flaw. If the player has the flaw, it dies in the first six months. If it does not have this flaw, then only 8.800% fail in the first six months. Yours died after you had it for three months. What are the chances that it has this flaw?

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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.