Hitler signed a non-aggression pact with Russia's leader, Joseph Stalin. Even though they promised not to attack each other, Hitler later invaded Russia.
Answer:
The purpose of public opinion polls is to making across all perspectives between the government and the general masses views that reflects in their voting and Conducting Survey of a particular section of the society is the best way in which a sample can be conducted.
Explanation:
Public opinion performs a significant role in the political sphere. Making across all perspectives of the relationship between government and public opinion are reflections of polling behavior.
In statistics, survey sampling represents the process of picking a sample of components from a particular population to carry out a survey. The term survey may apply to many diverse types or methods of observation.
1. it stopped the spread of slavery north of the Ohio river
