a discrete probability distribution is defined by the function P(X = x) = (x^2 + x) / 20 ; x = 1, 2, 3 a) use this information to fill in the second column in the table. The additional columns are for you to use as needed when finishing other parts of this problem. There may be an extra column. x P ( X = x) 1 2 3 total b) describe how you can determine that the algebraic function does indeed define a discrete probability c) use another column on the table as needed to find the mean, also known as the expected value d) Use another column on the table as needed to find quantities needed to calculate the standard deviation.
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.
a discrete
P(X = x) = (x^2 + x) / 20 ; x = 1, 2, 3
a) use this information to fill in the second column in the table. The additional columns are for you to use as needed when finishing other parts of this problem. There may be an extra column.
| x | P ( X = x) | ||||
| 1 | |||||
| 2 | |||||
| 3 | |||||
| total |
b) describe how you can determine that the algebraic function does indeed define a discrete probability
c) use another column on the table as needed to find the mean, also known as the
d) Use another column on the table as needed to find quantities needed to calculate the standard deviation.
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