In a factory producing steel parts, 30% of the total production is made by A, 30% B and 40% C machines. 1%, 3% and 2% of the production of these machines are defective parts, respectively. At the end of a day's production, a steel part is selected and found to be defective. What is the probability that this part was produced on the C machine? A. 10/20 B. 9/20 C. 8/20 D. 3/20
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.
In a factory producing steel parts, 30% of the total production is made by A, 30% B and 40% C machines. 1%, 3% and 2% of the production of these machines are defective parts, respectively. At the end of a day's production, a steel part is selected and found to be defective. What is the probability that this part was produced on the C machine?
A. 10/20
B. 9/20
C. 8/20
D. 3/20
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