What is the variance for the data values?

Ten students were sampled at random from a student population. Each was asked how many courses he or she was planning on studying in the upcoming year. The following is a list of the reported data values: 1, 2, 2, 3, 4, 5, 5, 5, 5, 6


What is the variance for the data values?


A. 2.844


B. 1.6


C. 2.56


D. 1.687

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