The test statistics which will be used here is standard deviation.
<h3>What is standard deviation?</h3>
The standard deviation is a statistic that measures the dispersion of a dataset relative to its mean and is calculated as the square root of the variance. The standard deviation is calculated as the square root of variance by determining each data point's deviation relative to the mean.
A volatile stock has a high standard deviation, while the deviation of a stable blue-chip stock is usually rather low.
Thus, Option D is true, as standard deviation is the test statistics which will be used here.
Learn more about standard deviation here,
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Yes, because there are many people who are learning or who know the language and live near, far or in the place they are speaking the language of.
The answer is evolutionary psychology as this theory is the
one responsible of having to explain the evolution of an individual in terms of
their mind and their behavior in which it involves their psychological traits.
In the statement above, evolutionary psychology predicts that a person is more altruistic
towards relatives than close friends for this theory explains the psychological
behavior of an individual and how his or her mind affects his or her way of
behaving towards the society or towards other people around him or her. It
explains why a person is much closer to his or her friends than of his or her
relatives.
The answer should be limited government
