STATISTICAL TECHNIQUES AND TOOLS
CONCEPT OF POINT AND INTERVAL ESTIMATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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What is the correct symbol for ____ Sample Standard Deviation
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2
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s
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s2
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Explanation:
Detailed explanation-1: -The symbol of the standard deviation of a random variable is ““, the symbol for a sample is “s".
Detailed explanation-2: -A standard deviation (or ) is a measure of how dispersed the data is in relation to the mean. Low standard deviation means data are clustered around the mean, and high standard deviation indicates data are more spread out.
Detailed explanation-3: -Because standard deviation is a measure of variability about the mean, this is shown as the mean plus or minus one or two standard deviations.
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