When you have the average production of three machines, it is easy to calculate the average or mean production. You just add ...

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, ...

Investopedia contributors come from a range of backgrounds, and over 25 years there have been thousands of expert writers and editors who have contributed. Somer G. Anderson is CPA, doctor of ...

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The T-Value is a common statistical calculation with a very wide range of applications. In the business world, it can help in making educated financial predictions and projections. For example, a ...

Using Microsoft Excel you can create charts based on the data and formulas entered in a worksheet. Enter a sample range of numbers in Excel as if you were at an event asking people their ages, for ...

While Excel is useful for many applications, it is an indispensable tool for those managing statistics. Two common terms used in statistics are Standard Deviation and ...

A cumulative frequency table shows a running total of the frequencies. A cumulative frequency diagram reproduces this table as a graph. The table below shows the lengths of 40 babies at birth. To ...