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in Q6, why it's c? as the extreme values affect the mean. kindly clarify.



6.     Which of the following is not true about the arithmetic mean.

                 a.  all the values are used in its calculation

                 b.  half of the observations are always larger than the mean

                 c.  it is influenced by a large value

                 d.  it is found by summing all the values and dividing by the number of observations

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