The quality control department examines all the products returned to a store by customers. An examination of the returned products yields the following assessment: 5% are defective and not repairable, 45% are defective but repairable, 35% have small surface scratches but are functioning properly, and 15% have no problems. Compute the following probability for a random sample of 20 returned products. None of the 20 returned products has any sort of defect
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.
The quality control department examines all the products returned to a store by customers. An examination of the returned products yields the following assessment: 5% are defective and not repairable, 45% are defective but repairable, 35% have small surface scratches but are
None of the 20 returned products has any sort of defect
In the returned products to a store by customers, it is given that
The number of total returned products is 20
Defective but not repairable is 5%
Defective but repairable is 45%
Having small scratches but functions properly is 35%
Products that have no problem are 15%
We have to find that none of the 20 returned products has any sort of defect.
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