RIGIDLY DEFINED: The value of mean is rigidly defined as the calculations are based on the mathematical properties and as such there is no scope for misinterpretation. ... BEST SUITABLE FOR COMPARISON: Arithmetic Mean has rigid mathematical properties and it the stable average.

What does rigidly held mean?

in a stiff or fixed way, without bending or moving: They sat rigidly in their seats.

What is the mean of rigidity?

Rigidity is the state or quality of being rigid—stiff and inflexible. Both rigid and rigidity can be used in both literal and figurative ways. For example, a material like plastic might be described as rigid if it does not bend or bend easily.