Which of the following statements is true? a). The mean of a random variable characterizes the “dispersion” of a random variable, and the variance of a random variable describes the “location” of the random variables. b). A continuous random variable can be characterized by a probability mass function c). The standard deviation of a random variable is the same as its variance d). In Statistics, the lower case Latin alphabet is often used to denote the realizations or values a random variable, while the upper case Latin alphabet is used to denote the random variable.
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.
Which of the following statements is true?
a). The
b). A continuous random variable can be characterized by a
c). The standard deviation of a random variable is the same as its variance
d). In Statistics, the lower case Latin alphabet is often used to denote the realizations or values a random variable, while the upper case Latin alphabet is used to denote the random variable.
Step by step
Solved in 3 steps
