The RAND function returns a random number between 1 and 0. The returned random number can have up to 15 decimal digits.
Each time a worksheet is calculated RAND function updates a new number. To fix the random number you got, copy and paste it as value.
RAND function Syntax
RAND function doesn't need any argument.
To get a random number between 1 and 0 just write RAND in any cell in excel.
To get random number in multiple cells at once, just select multiple cells and write RAND formula in formula bar and hit CTRL+ENTER key combination on keyboard. And walla! Here you have your random numbers in selected cell.
Now if you want whole random numbers between a specified range, you should use RANDBETWEEN function.
Some random related article:
Get Random numbers between two numbers
So yeah, this how you use RAND function in excel to generate random numbers between 1 and 0.
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