Suppose that 63% of all voters prefer the Democratic candidate. Let X be the number of people who prefer the candidate when 24 people are surveyed at random. What is the distribution of X? ( , ) Please show the following answers to 4 decimal places. What is the probability that exactly 13 voters who prefer the Democratic candidate in the survey? What is the probability that at least 13 voters who prefer the Democratic candidate in the survey?
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 63% of all voters prefer the Democratic candidate. Let X be the number of people who prefer the candidate when 24 people are surveyed at random.
- What is the distribution of X? ( , )
Please show the following answers to 4 decimal places.
- What is the
probability that exactly 13 voters who prefer the Democratic candidate in the survey? - What is the probability that at least 13 voters who prefer the Democratic candidate in the survey?
- What is the probability that at most 13 voters who prefer the Democratic candidate in the survey?
- What is the probability that between 12 and 14 (including 12 and 14) voters who prefer the Democratic candidate in the survey?
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