期き待たい値ち

noun

expected value; expectation

Mathematical term for the weighted average of possible outcomes. Used in probability and statistics.

• サイコロを振ふったときの出で目めの期き待たい値ちは3.5です。

  The expected value of the roll of a die is 3.5.

noun

expectations; what one hopes for

General use for what someone anticipates or hopes will happen, often in everyday contexts.

• 新しん製せい品ひんの売うり上あげに対たいする期き待たい値ちが高たかまっている。

  Expectations for the new product's sales are rising.

noun

expectation value

Physics term, specifically the quantum mechanical expectation value of an observable.

• 量りょう子し力りき学がくでは、物ぶつ理り量りょうの期き待たい値ちは演えん算ざん子しの積せき分ぶんで求もとめられる。

  In quantum mechanics, the expectation value of a physical quantity is obtained by integrating the operator.