Every cereal box has a gift inside, but you cannot tell from the outside what the gift is. The store manager assures you that 13 of the 65 boxes on the shelf have the secret decoder ring. The other 52 boxes on the shelf have a different gift inside. If you randomly select two boxes of cereal from the shelf to purchase, what is the probability that BOTH of them have the secret decoder ring? (Give answer as a decimal correct to at least three decimal places.) probability =
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.
Given,
Probability of box that have the secret decoder ring =13/65
Probability of box that have other gift=52/65
P(BOTH of them have the secret decoder ring)=?
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