What was the age distribution of prehistoric native americans? extensive anthropological studies in the southwestern united states gave the following information about a prehistoric extended family group of 82 members on what is now a native american reservation. for this community, estimate the mean age expressed in years, the sample variance, and the sample standard deviation. for the class 31 and over, use 35.5 as the class midpoint. (round your answers to one decimal place.)

What role did farmers play in the development of economically stable communities? farmers produced enough food to allow others to take on other jobs farmers had difficulty fending off warriors from other groups. women were no longer allowed to farm warriors and craftsmen worked on behalf of the farmers. the abundance of food allowed for civilizations to form under the leadership of a rising political class. next question o turn it in ask for 2014 glvalvon inc. all rights reserved

Select the five weaknesses of the articles of confederation. congress could not declare war or establish an army. congress could not levy taxes. congress could not control trade. not all the states were represented in congress. no national court system. no executive to enforce the laws. congress could not negotiate with foreign governments. the national government could not borrow money. nine of the states had to agree to pass a law.

Why is it important that dr. luther king jr. use non-violent protest to create social change?