σ is an example of a
a. sample statistic.
b. population statistic.
c. sample parameter.
d. population parameter.
d. It is a population parameter. Together with the mean it defines the population.
a. It is the STD (standard deviation) of a sample taken from the population
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d. It is a population parameter. Together with the mean it defines the population.
a. It is the STD (standard deviation) of a sample taken from the population