推計

1. Origins, structure, and basic meaning

• Structure: Written 推計 and read すいけい, it is an estimate calculated from available evidence or a defined method when complete data are lacking.
• Basic usage: It is used for deriving a past population from incomplete records and comparing estimation methods.

2. Common pitfalls and similar expressions

• More than a guess
  • It implies a numerical inference grounded in data or procedure rather than an unsupported impression.