in exercises 13 and 14, answer the questions designed to help understand the rationale for the binomial probability formula. problem number 14. News source Based on data from a harris interactive survey, 40% of adults say that they perfer to get their news online. Four adults are randomly selected. a.) Use the multiplication rule to find the probability that the first three prefer to get their news online and the fourth perfers a different source. That is, find P(OOOD), where O denotes a perference for online news and D denotes a perference for a news source different from online b.)Beginning with OOOD, make a complete list of the different possible arrangements of those four letters, then find the probability for each entry in the list. c.) Based on the preceding results, what is the probability of getting exactly three adults who prefer to get their news online and one adult who perfers a different news source.
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.
in exercises 13 and 14, answer the questions designed to help understand the rationale for the binomial
problem number 14.
News source Based on data from a harris interactive survey, 40% of adults say that they perfer to get their news online. Four adults are randomly selected.
a.) Use the multiplication rule to find the probability that the first three prefer to get their news online and the fourth perfers a different source. That is, find P(OOOD), where O denotes a perference for online news and D denotes a perference for a news source different from online
b.)Beginning with OOOD, make a complete list of the different possible arrangements of those four letters, then find the probability for each entry in the list.
c.) Based on the preceding results, what is the probability of getting exactly three adults who prefer to get their news online and one adult who perfers a different news source.
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