Final answer:
A percentage is a fractional value representing a proportion of a whole, where the whole is divided into 100 parts. The answer is 'b. Fractional value; dimensional' as percentages are ratios with a denominator of 100.
Step-by-step explanation:
A percentage is a fractional value formed by combining the same dimensional quantities, such as count (number/number) or time (duration/duration; latency/latency). The most appropriate option for filling in the blanks would be b. Fractional value; dimensional.
Percentage represents a number or ratio as a fraction of 100. For example, if we have a percentage of 25%, it means the proportion of the quantity is 25 out of 100, or 25/100. Similarly, a 50% ratio would be equivalent to 50/100 or 1/2, illustrating half of the whole.
Understanding proportions and percentages is essential in various real-world applications such as calculating discounts, determining interest rates, and representing statistical data involving rates or relative frequencies.