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CNN wants to conduct a political poll to determine who voters support in the upcoming...

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CNN wants to conduct a political poll to determine who voters support in the upcoming presidential election. Pollsters are aware that opinions can be affected by geographical region, so they plan to divide the country into regions: Southeast, Northeast, Midwest, Rocky Mountain, Pacific, etc. They will randomly choose 50 people from every region to be in the polling sample. What sampling technique is this? Stratified SampleConvenience Sample Cluster Sample Simple Sample

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