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RANDBETWEEN
The Excel Rand function generates a random real number between 0 and 1.

The function takes no arguments and therefore, its syntax is:

RAND( )

Although the number generated is between 0 and 1, you can use the function to generate a
random real number between any two supplied limits **a** and **b**, using the formula:

=a + (b-a) * RAND( )

Examples of this are provided below.

In the following spreadsheet, the Excel Rand function is used to generate random numbers between different limits.

A | ||
---|---|---|

1 | =RAND( ) | - returns a random real number between 0 and 1 |

2 | =100 * RAND( ) | - returns a random number between 0 and 100 |

3 | =0.8 + (1.2 - 0.8) * RAND( ) | - returns a random number between 0.8 and 1.2 |

Note that the above formulas will return a different random number every time the spreadsheet recalculates. To force a recalculation at any time, press the F9 key.

For further details of the Excel Rand Function, see the Microsoft Office website.