Why are the conclusions drawn about voter sociology sometimes inaccurate

There are many reasons why conclusions drawn about voter sociology might sometimes be inaccurate. One of the problems with studying voters is that of samples. Samples, even when random, are sometimes biased. Moreover, depending on how high voter turnout is, samples might not reflect the reality of all society. The problem of turnout also makes it difficult for the studies to be replicated, which is a problem considering that these conclusions are usually based upon a variety of studies conducted.

1) the taiping rebellion was prompted from 1850-1864 and waged against the ruling of machu qing dynasty. the rebellion was caused by hong xiuquan and class differences, later leading to a radical change in social and economic structure.

3) karl marx, a believer of the principle of socialism, believed that the working class would have to free themselves from the exploitation of industrialists by establishing a radical socialist classless society where all industries and   property are owned by the state.

5) as indians revolt gained power, people found additional reasons to protest against the british rule. princely families joined the uprising due to changes to the inheritance law which made adopted children ineligible to assume the throne. this was an attempt by the british to control royal succession in the princely states that were nominally independent from the british.