Question: (a) How do we determine the scores that mark the middle 68% of a sample? (b) How do we determine the scores that mark the

(a) How do we determine the scores that mark the middle 68% of a sample?
(b) How do we determine the scores that mark the middle 68% of a known population?
(c) How do we estimate the scores that mark the middle 68% of an unknown population?

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