Julie Young is an experienced financial writer and editor. She specializes in financial analysis in capital planning and investment management. Sydney Saporito / Investopedia A frequency distribution ...

Quartiles are the values that divide a data set into quarters: Put the values in order Divide the list into four equal parts The Quartiles are at the divisions The interquartile range shows the range ...

Bar Chart: a chart with horizontal bars that show frequencies or percentages for the categories. It is a graphical equivalent of a summary table. Chartjunk: a chart that has unnecessary details. It ...

There are 30 students, so we are looking for the group which contains the \((30 + 1) \div 2 = 15\frac{1}{2}th\) value, which lies halfway betwen the 15th and the 16th value. The cumulative frequency ...