Consider the following data from a random sample: 10 10 X I = 70 XI - X ) 2 = 18 i=1 _
A) X = 7, S2 = 2
B) = 7, 2 = 2 _
C) X = 7, 2 = 2
D) The population mean is 7 and S2 = 2
E) It is not possible to estimate the population mean and standard deviation from the given information.
Correct Answer:
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