PENDING
Please predict whether this patent is acceptable.PATENT ABSTRACT: An estimation device according to an aspect of the present invention includes an estimator and a selector. The estimator, for each of a plurality of times, estimates a probability density distribution of a parameter representing a state of a diagnosis object, based on a measurement value of the diagnosis object, the measurement value being measured up to each of the times. The selector selects one or more probability density distributions meeting a predetermined condition relating to the probability density distribution.