Of all the registered automobiles in a city, 10% fail the emissions test. Fifteen automobiles are selected at random to undergo an emissions test. Round the answers to at least four decimal places. It would not be unusual for fewer than three of them to fail the test since the probabilty is what?
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.
Of all the registered automobiles in a city, 10% fail the emissions test. Fifteen automobiles are selected at random to undergo an emissions test. Round the answers to at least four decimal places. It would not be unusual for fewer than three of them to fail the test since the probabilty is what?
Probability that an automobile will fail the emission test (p)= 0.1
Probability that an automobile will not fail the emission test (q)= 0.9
Number of automobiles selected (n) = 15
The formula for Binomial distribution that could be used to find the probability is:
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