Final answer:
The range of values for different bit sizes in two's complement is calculated using a formula.
Step-by-step explanation:
The range of values for different bit sizes in two's complement can be calculated using the formula -2^(n-1) to 2^(n-1) - 1, where n is the number of bits. For example, with a 4-bit system, the range would be -8 to 7.