What percent of the Roman population were plebians?

90-98% can't be correct when 25% or more (some sources say 1/3 or . 33.33%) of the population were slaves.
Slaves were the third social class in Ancient Rome.

If slaves were, let's say 30%. That leaves us with 70% between Patricians and Plebs. Out of this, probably 90% or even 98% were Plebeians. So let's say 95% of 70% = 66.5%

So, we could say that 3.5% were Patricians, 66.5% Plebeians, and 30% of slaves.

To answer this question correctly, if there's a correct answer between the alternatives. I'd go for C, 55% (taken into consideration that slaves could be 33% (1/3), and the percentage of plebeians, we did eyeball a bit high.

So the correct answer is option C. 55%.

Today, the population within a country includes different groups of people based on their socioeconomic status. There is the upper class which has the richest people in it. There is the middle class which includes the working class and usually includes most of the people.

The last group is the lower class which includes the poorer people. Both the upper and lower classes have the fewest numbers of people in them. The same is said in ancient Rome. The Roman population’s middle class were known as the plebians.

As a matter of fact, almost 90 percent of the Roman people were plebians. That means that the upper class with the rich Romans was less than ten percent of the population.