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The standard deviation of U(4, 92) is 25.4034
Mean
Mean, in mathematics, is a quantity that has a value intermediate between those of the extreme members of some set. Several kinds of means exist, and the method of calculating a mean depends upon the relationship known or assumed to govern the other members.
Standard Deviation
Standard Deviation is a measure that shows how much variation (such as spread, dispersion, spread,) from the mean exists. The standard deviation indicates a typical deviation from the mean. It is a popular measure of variability because it returns to the original units of measure of the data set.
Mean Conductivity
Mean Conductivity is the amount of heat that moves through a slab with a unit cross-sectional area per second. Electrical conductivity is the amount of electricity that flows through a comparable slab per second when the potential gradient is unity.
Mean = (4 + 92)/2 = 48
Standard deviation = (92 - 4)/√12 = 25.4034
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