Answer:
In simple words, Representative surveys are valuable because they mean that the questionnaire contains all different categories of individuals and also that the correct blend of individuals is questioned. Your results will be skewed if your study isn't representative. The poll's inconsistency was due to an unbalanced, non-representative sample.
Because United we stand, divided we fall.
Answer:
22, 1862: President Lincoln told a New York newspaper that preserving the Union was his main goal of the Civil War — not abolishing slavery.
Explanation:
I'm sorry, you need more information for me to figure this one out. But my guess would be the second one!!
The Inca Empire used the Quechua communication system which was letters and Egypt used the Hieroglyphics which were symbols.
Hope this helps...have a good day!! ;)