A software company keeps their important files on a CD, on a flash drive and on a Google drive as a backup copy. Suppose it is known that they keep their 15% files on a CD, 35% files on a flash drive and 50% files on a Google drive. From the past experience, it is known that 50%, 30% and 5% files are corrupted when it was backed-up onto the CD, onto the flash drive, and onto the Google drive, respectively. If a randomly chosen file was found to be corrupted, what is the probability that the file was not kept on Google drive or kept on CD?
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.
A software company keeps their important files on a CD, on a flash drive and on a Google
drive as a backup copy. Suppose it is known that they keep their 15% files on a CD, 35%
files on a flash drive and 50% files on a Google drive. From the past experience, it is known
that 50%, 30% and 5% files are corrupted when it was backed-up onto the CD, onto the
flash drive, and onto the Google drive, respectively. If a randomly chosen file was found
to be corrupted, what is the probability that the file was not kept on Google drive or kept
on CD?
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