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What does it mean to have a standard deviation of zero for a sample?
偏差
分数 均值
Questioner:Charlotte Clark 2023-06-17 12:09:01
The most authoritative answer in 2024
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Elijah Foster——Works at Airbnb, Lives in San Francisco, CA
Explain your answer. SS = --(X - )2. When you square a real number, the result is always non-negative. ... The only way that each squared
deviation score can be equal to 0 is if all of the
scores equal the
mean. Thus, when the
standard deviation equals 0, all the
scores are identical and equal to the
mean.
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