What is the difference between round function and round between function in excel

What is the difference between round function and round between function in excel

Randbetween function means to return a random integer greater than or equal to the specified minimum value and less than the specified maximum value. Every time the worksheet is calculated, a new value will be returned. For example: randbetween (1100): a random integer (variable) greater than or equal to 1 and less than 100. Randbetween (- 1,1): large