3. Analytical Tools
Basic Statistics — Quiz
Test your understanding of basic statistics with 5 practice questions.
Practice Questions
Question 1
When analyzing public policy data, which statistical measure quantifies the average squared deviation of each data point from the mean?
Question 2
A public policy analyst is examining the distribution of household incomes in a city. If the distribution is negatively skewed, which of the following is true regarding the relationship between the mean, median, and mode?
Question 3
Which type of data visualization is most effective for comparing the distribution of a continuous variable across different categories, such as the distribution of test scores for students in various public education programs?
Question 4
A public policy researcher is studying the impact of a new urban development project on property values. They collect data on property values before and after the project. To determine if there is a significant change, which statistical concept would be most relevant?
Question 5
Consider a dataset of public spending on environmental protection, with values in millions of dollars: $[10, 12, 15, 18, 20, 22, 25, 100]$. What is the median of this dataset?