It means, Anti Mullerian Hormone is too low. The ideal it is to be 2-3 minimum
Power leveling is a term used in the gaming world. The definition of power leveling is the use of a high level character assisting the leveling of a low level character.
A high level 4 or low level 5.
To say, "you're an idiot" is to mean that the person you are referring to is an idiot. In this context, an idiot is generally someone with a low level of intelligence, or one who lacks understanding.
A low standard deviation would mean that there is not much variation from the mean value of the data.