Calculate the Sample Standard Deviation. 1  Calculate the mean or average of each data set. To do this, add up all the numbers in a data set and divide by the total number of pieces of data. For example, if you have found numbers in a data set, divide the sum by 4. This is the mean of the data set.
investor. A person who buys an asset with the expectation that its market value will increase and yield a profit when sold. A person whose investment strategy focuses on the long-term, rather than speculation about short-term market movements. Compare to Daytrader; scalper. person who buys an asset with the expectation that its market value will increase and yield a profit when sold. A person whose investment strategy focuses on the long-term, rather than speculation about short-term market movements.
An individual who commits money to investment products with the expectation of financial return. Generally, the primary concern of an investor is to minimize risk while maximizing return, as opposed to a speculator, who is willing to accept a higher level of risk in the hopes of collecting higher-than-average profits. The investor insisted on a bigger equity share in order to invest the amount of money the company was asking for.