How many letters does the top answer for “a deliberately haphazard arrangement of observations so as to simulate chance” have?

The most common answer is randomisation (13 letters).

Crossword clue: a deliberately haphazard arrangement of observations so as to simulate chance

2 answers found in Letterora's clue database (Wikidata facts, Open Trivia DB, WordNet and Webster definitions — all licensed sources).

randomisation 13 letters wn-def

a deliberately haphazard arrangement of observations so as to simulate chance

randomization 13 letters wn-def

a deliberately haphazard arrangement of observations so as to simulate chance