Given the random variable X with probability mass function PX(x) = 1/4 (for x =1, 2, 3, 4) and 0 elsewhere. A derived random variable Y = 5X2 – 3 is given for the said distribution. Set up the CDF FY(y) in terms of CDF FY(x). Find the PMF PY(y) of the derived random variable Y.
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.
Given the random variable X with
PX(x) = 1/4 (for x =1, 2, 3, 4) and 0 elsewhere.
A derived random variable Y = 5X2 – 3 is given for
the said distribution.
- Set up the CDF FY(y) in terms of CDF FY(x).
- Find the PMF PY(y) of the derived random variable Y.
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