Will Kenton is an expert on the economy and investing laws and regulations. He previously held senior editorial roles at Investopedia and Kapitall Wire and holds a MA in Economics from The New School ...

Marshall Hargrave is a stock analyst and writer with 10+ years of experience covering stocks and markets, as well as analyzing and valuing companies. Dr. JeFreda R. Brown is a financial consultant, ...

Measure of spread are descriptive statistics or summary statistics and fall under the data analysis step in the Statistical investigation process Generally the first descriptive or summary statistics ...

Please note: This item is from our archives and was published in 2021. It is provided for historical reference. The content may be out of date and links may no longer function. Excel’s Analysis ...

The mean is the (Sum of Numbers*Frequencies)/(Sum of Frequencies). In the example the sum of the frequencies is 23, so the mean is 104/23=4.5. In formula form, the mean of numbers x which occur with ...

Descriptive statistics are the cornerstone of data analysis. This method provides the researcher with the tools necessary to understand the statistics on hand. It offers insight into the ...

Whatever study you choose to conduct, it will probably have a target population. The target population is the group of people who could be involved in your study. For example, if you wanted to do some ...

This section provides computational details for the descriptive statistics which are computed with the PROC CAPABILITY statement. These statistics can also be saved in the OUT= data set by specifying ...

In response to my article, Is the Stock Market Too Concentrated?, which relied upon standard-deviation calculations to assess investment risk, a reader wrote: “My problem [with your argument] is ...