A random number between 1 and 3 is an unpredictable numerical value within that range. For instance, rolling a six-sided die and getting a number between 1 and 3 is an example of such a random number.
Random numbers between 1 and 3 hold significance in probability, statistics, and computer science. They allow for unbiased decision-making and simulation modeling. The modern understanding of random numbers traces its roots back to the 20th century, with the development of algorithms for generating true random numbers.