Suppose a CDR disc is selected randomly and it is found that there are 3 imperfections. Calculate the probability that this CD-R disc is produced by Company B.
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 computer retailer purchased CD-R discs from Companies A, B and C at percentage shares of 55%,
32% and 13% respectively. The number of imperfections on a CD-R disc from Companies A, B and C
follow the Poisson distribution with means 2.2, 2.8 and 1.9 imperfections, respectively. Suppose a CDR disc is selected randomly and it is found that there are 3 imperfections. Calculate the
that this CD-R disc is produced by Company B.
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