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Help Please We measured a sample of 400 people and found that the mean I.Q. was 109 and the standard deviation was He. Mean =

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We measured a sample of 400 people and found that the mean I.Q. was 109 and the standard deviation was He. Mean = 109, SD = 14). What is the variance? What is the SS? What is 21X? REPEAT the question assuming a POPULATION of 400 people. (hint: 2 of your answers should look familiar. Why is one answer different?) What is the variance? What is the SS? What is 21X? ; [B English (United States) EIFocus [556 '_=__= g

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