surveyor is determined to sample homeowners in south Philadelphia before the next local election in order to assess key issues that people want to see changes for this year. Suppose the surveyor decides that he will first collect a list of eligible voters from the county, and separate that list into four groups based on annual income. Then, the surveyor randomly assigns each household a number 01-10 within each group of income. The surveyor will select 4 households from each income group using the following random number table. Once 4 households are selected for one group, the surveyor would continue with the next on the same line of the table. 081203 071072 058436 080695 010354 080951 213607 041573 083947 101503 785409 A) What kind of sampling strategy is this? B) Which households would be selected for each income group from this table?
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.
A surveyor is determined to sample homeowners in south Philadelphia before the next local election in order to assess key issues that people want to see changes for this year. Suppose the surveyor decides that he will first collect a list of eligible voters from the county, and separate that list into four groups based on annual income. Then, the surveyor randomly assigns each household a number 01-10 within each group of income. The surveyor will select 4 households from each income group using the following random number table. Once 4 households are selected for one group, the surveyor would continue with the next on the same line of the table.
081203 071072 058436 080695 010354 080951 213607 041573 083947 101503 785409
A) What kind of sampling strategy is this?
B) Which households would be selected for each income group from this table?
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