If a coin tossed three times, X defined as random variable for number of heads; a. What is the probability function for this experiment and draw the graph? b. What is the expected value in this experiment? c. What are the variance and standard deviation, please calculate?
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.
statistics and probability
If a coin tossed three times, X defined as random variable for number of heads;
a. What is the probability
b. What is the
c. What are the variance and standard deviation, please calculate?
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