BUSINESS ADMINISTRATION
RESEARCH METHODOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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s
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s^2
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Detailed explanation-1: -The symbol ‘’ represents the population standard deviation.
Detailed explanation-2: -The population standard deviation is a number representing the spread of the population distribution and is therefore an example of a population parameter. The Greek letter (sigma) is the most common symbol for the population standard deviation.
Detailed explanation-3: -Standard deviation may be abbreviated SD, and is most commonly represented in mathematical texts and equations by the lower case Greek letter (sigma), for the population standard deviation, or the Latin letter s, for the sample standard deviation.
Detailed explanation-4: -A standard deviation is a measure of how unusual a set of data is if a hypothesis is true. Physicists express standard deviations in units called sigma, . The higher the number of sigma, the more incompatible the data are with the hypothesis.