Suppose that a machine has a certain type of part whose time, in year, to failure is given by T. The random variable T is modeled nicely by the exponential distribution with mean time to failure B= 9. If 9 of these components are installed in different systems, what is the probability that a part is still functioning at the end of 14 years? 0.211 O 0.151 0.169 O 0.189

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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.