The following table contains the probability distribution for the number of traffic accidents daily in a small town. Complete parts (a) through (c) below. Number of Accidents Daily (X) P(X = x,) 0.27 0.34 2 0.14 3 0.08 0.07 4 0.06 0.04 a. Compute the mean number of accidents per day. (Type an integer or a decimal. Do not round.)
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.
Mean: The mean is the sum of observations divided by the number of observations. that is,
OR
Notations:
Sample mean = x and
Population mean = μ
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