You have a collection of 15 phone cords, 4 of which work to charge your current phone and 11 of which are either broken or belong to old phones. You pick 2 cords randomly from the collection. Let X = the number of working cords among those 2. Write out the probability mass function (pmf) of X in table form.
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.
Please re-do this question again, it request to write out the probability mass
You have a collection of 15 phone cords, 4 of which work to charge your current phone and 11 of which are either broken or belong to old phones. You pick 2 cords randomly from the collection. Let X = the number of working cords among those 2. Write out the probability mass function (pmf) of X in table form.
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