Which type of data have elements in common but do not fit into rigid rows and columns in a table?

Given the data set: $4$, $7$, $7$, $10$, $12$, what is the median of the data?

For which of the following $\mathrm{population}\mathrm{parameters}$ is $\mathrm{sampling}$ not necessary?

In statistics, what is the collection of all observations or measurements on the variables called?

Which of the following is an example of statistical quality control?

Which of the following statements is true about the interquartile range $\mathrm{IQR}$?

In introductory statistics software, what does using the $\mathrm{stats}$ command with a $\mathrm{by}$ clause typically accomplish?

Which of the following statements is true about a $\mathrm{population}$ in a statistical survey?

Which of the following is not necessarily an outlier in a data set?