Combinatorics deals with problems involving counting. For example, “How many…

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Combinatorics deals with problems involving counting. For example, “How many distinct arrangements of N distinct objects in M spaces on a circle are possible?” is a typical problem in combinatorics. This kind of counting is sometimes used in the modeling of several physical phenomena. Often, in such models, the different combinatorial possibilities are assigned probability values. Assigning probabilities enables the computation of the average values of physical quantities.

Consider the following statements:

P: Combinatorics is always invoked in the modeling of physical phenomena.

Q: Modeling some physical phenomena involves assigning probabilities to combinatorial possibilities in order to compute average values of physical quantities.

Based on the passage above, what can be inferred about statements P and Q?

  1. A.

    P is False and Q is False

  2. B.

    P is False and Q is True

  3. C.

    P is True and Q is False

  4. D.

    P is True and Q is True

Attempted by 14 students.

Show answer & explanation

Correct answer: B

Statement P claims combinatorics is always invoked, but the passage states it is often used. Thus, P is false. Statement Q aligns with the text regarding assigning probabilities to compute average values. Therefore, Q is true.

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