plural of problem space

plural of probability space

plural of scientific problem

(aeronautics) Pertaining to a method of aerial refuelling whereby a probe from the receiving aircraft fits into a trailing hose with drogue attachment from a tanker aircraft.

The need to make a decision between alternatives that are both desirable.

A law enforcement officer who supervises offenders who have been released from incarceration and, often, recommends sentencing in courts of law.

The probability distribution of a random variable whose sample space is the Cartesian product of the sample spaces of its (at least two) component random variables.

A kind of puzzle in which there is one common factor in a first set of diagrams that is missing from a second set. The solver (possibly a computer program) must identify this factor.

Alternative form of measurement problem

(quantum mechanics) The unresolved problem of what causes a wavefunction to collapse into an eigenstate, or whether wavefunctions collapse at all.