In the Bay Area, 40% of registered voters are Democrats, 25% are Republicans, and the remaining 35% are Other (Independent or minor party). A). If 12 registered voters are randomly selectedform the Bay Area, what is the probability that 6 are Democrat, 3 are Republican, and the restare Other? B). If 12 registered voters are randomly selected, what is the probability that exactly 6 are Democrat? What are the mean and standard deviation for the number of Democrats in the sample? C). What is the probability that the 12thregistere
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 the Bay Area, 40% of registered voters are Democrats, 25% are Republicans, and the remaining 35% are Other (Independent or minor party).
A). If 12 registered voters are randomly selectedform the Bay Area, what is the
B). If 12 registered voters are randomly selected, what is the probability that exactly 6 are Democrat? What are the mean and standard deviation for the number of Democrats in the sample?
C). What is the probability that the 12thregistered voter selected is the 4thRepublican to be sampled?
D). Suppose that in a focus group of 16 voters watching a televised debate, 8 are Democrats, 5 are Republicans, and the rest are Other. If five are to be randomly selected to be interviewed following the debate, what is the probability that exactly three Democrats are chosen
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