The says that, as we take more and more observations at random from any population, the distribution of the mean of these observations eventually gets close to a normal distribution.

 The correct answer is : The central limit theorem

Explanation:  This is a fundamental theorem of probability and statistics. When the sample size is large enough, the distribution of the means follows approximately a normal distribution. The theorem can be applied regardless of the form of population distribution.

the branch of biology that deals with the normal functions of living organisms and their parts.

the way in which a living organism or bodily part functions.

i truly dont know the answer wait i do its 1,3,4