Examlex
If the population distribution is skewed,in most cases the sampling distribution of the sample mean can be approximated by the normal distribution if the samples contain at least 30 observations.
Logarithm
A logarithm is the power to which a number, called the base, must be raised to produce a given number.
Fraction
A numerical quantity that is not whole, representing a part of a whole.
Inverse Function
A function that reverses the effects of another function, such that the composition of the two functions yields the identity function.
Graph
A visual representation of data or mathematical functions on a coordinate plane.
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