STATISTICAL TECHNIQUES AND TOOLS
STANDARD ERROR
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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68% of the values fall within 1 standard deviation
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90% of the values fall within 1 standard deviation
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75% of the values fall within 1 standard deviation
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99% of the values fall within 1 standard deviation
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Detailed explanation-1: -The empirical rule (also called the “68-95-99.7 rule") is a guideline for how data is distributed in a normal distribution. The rule states that (approximately):-68% of the data points will fall within one standard deviation of the mean.
Detailed explanation-2: -The empirical rule, or the 68-95-99.7 rule, tells you where most of the values lie in a normal distribution: Around 68% of values are within 1 standard deviation of the mean. Around 95% of values are within 2 standard deviations of the mean. Around 99.7% of values are within 3 standard deviations of the mean.
Detailed explanation-3: -The empirical rule in statistics, also known as the 68 95 99 rule, states that for normal distributions, 68% of observed data points will lie inside one standard deviation of the mean, 95% will fall within two standard deviations, and 99.7% will occur within three standard deviations.