Hypothalamic Amenorrhea. Amenorrhea simply means the absence of menstruation (one or more missed menstrual periods), and it can be caused by a variety of things, including problems with the reproductive organs or hormones.
Normality is an ambiguous measure of the concentration of a solution. It needs a definition of the equivalence factor, which depends on the definition of equivalents. The same solution can possess different normalities for different reactions.
Assumption of Normality asserts that the distribution of sample means (across independent. samples) is normal. In technical terms, the Assumption of Normality claims that the sampling. distribution of the mean is normal or that the distribution of means across samples is normal.