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15 March, 16:55

A political scientist has 12 volunteers for a political opinlon survey. The political scientist selects 2 of the volunteers to

complete different variations of the survey. How many ways can this be done?

132

144

169

196

+3
Answers (1)
  1. 15 March, 17:08
    0
    Opinion polls are usually designed to represent the opinions of a population by conducting a series of questions and then extrapolating generalities in ratio or within confidence intervals.
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