Concept explainers
A sociologist assembles a dataset consisting of the poverty rate, per capita income, serious crime rate, and teen birthrate for the 50 states of the United States.
- How many variables are in this dataset?
- What is an observational unit in this dataset?
- What is the
sample size for the dataset?
(a)
To Find:
The number of variables in the data set
Answer to Problem 2.1E
Explanation of Solution
The data set assembled by the sociologists consists of four variables such as the poverty rate, per capita income, serious crime rate, and teen birth rate for the
(b)
To Find:
The observational unit in this dataset
Answer to Problem 2.1E
A state of the united states
Explanation of Solution
Since the sociologists observes these four variables in the
(c)
To Find:
The sample size for the dataset
Answer to Problem 2.1E
Explanation of Solution
Since the sociologists observes those variables in
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Mind on Statistics
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