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JEE Main 2006 Mathematics question

MathematicsStatisticsJEE Main 2006

Suppose a population has 100 observations 101, 102, ..., 200, and another population B has 100 observations 151, 152, ..., 250. If and represent the variances of the two populations, respectively, then is

Answer: (1)

Solution

Population B is population A shifted by 50 (each observation + 50). Variance is

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Question ID VK-038866