.62 Find and explain some probabilities. (a) Can we have an event A that has negative probability? Explain your answer. (b) Suppose P(A) 5 0.2 and P(B) 5 0.4. Explain what it means for A and B to be disjoint. Assuming that they are disjoint, find the probability that A or B occurs. (c) Explain in your own words the meaning of the rule P(S) 5 1. (d) Consider an event A. What is the name for the event that A does not occur? If P(A) 5 0.3, what is the probability that A does not occur? (e) Suppose that A and B are independent and that P(A) 5 0.2 and P(B) 5 0.5. Explain the meaning of the event {A and B}, and find its probability.
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.
4.62 Find and explain some probabilities. (a) Can we have an
0.2 and P(B) 5 0.5. Explain the meaning of the event {A and B}, and find its probability.
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