Suppose that 70% of civil servants in South Africa are trade union members. Using the binomial probability distribution function, the probability that at least half of a random sample of eight civil servants will be trade union members is . Also, the expected value of this binomial distribution isand the variance of this binomial distribution is . (Note: write your final answers to 3 decimal places)
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.
Suppose that 70% of civil servants in South Africa are trade union members. Using the binomial
Step by step
Solved in 3 steps with 4 images
