For a set of data arranged or sorted in numerical order,the value of the observation in the center is called the weighted mean.
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Q2: In a company,the standard deviation of the
Q3: The standard deviation is the positive square
Q4: For any data set,which measures of central
Q5: In a sample of 10 people,3 persons
Q6: The sum of the deviations of each
Q7: The variance is the mean of the
Q8: The geometric mean is the nth root
Q9: For any distribution,there is an equal number
Q10: The sum of the deviations from the
Q11: A value that is typical or representative
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