Arandom sample of people is chosen to participate in a survey. for the survey results to be considered valid, which must be true of the random sample? the sample must be the same size as the population. the sample must represent the target population. the sample must be biased. the sample must be a group separate from the population.

Africa, 1914 which statement is the best conclusion for the information presented in the map? a) european colonization had a positive impact on african nations. b) african colonization the economic growth of all european nations involved. c) by the outbreak of world war i, most of the african continent was under english control. d) by the outbreak of world war i, most of the african continent was under european control.