Each of 12 refrigerators of a certain type has been returned to a distributor because of an audible, high-pitched, oscillating noise when the refrigerator is running. Suppose that 7 of these refrigerators have a defective compressor and the other 5 have less serious problems. The technition looks at 6 refrigerators, what is the probability that exactly 5 have a defective compressor?
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.
Each of 12 refrigerators of a certain type has been returned to a distributor because of
an audible, high-pitched, oscillating noise when the refrigerator is running. Suppose
that 7 of these refrigerators have a defective compressor and the other 5 have less
serious problems. The technition looks at 6 refrigerators, what is the probability that
exactly 5 have a defective compressor?
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
