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Probability Flashcards

6 cards from real MDTP practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 6 Probability flashcards as text

  1. A fair six-sided die is rolled. What is the probability of rolling an even number?

    Answer: 1/2

    Even numbers on a die are 2, 4, 6 — three outcomes out of six, giving probability 3/6 = 1/2.

  2. If P(A and B) = 0.12 and P(A) = 0.4, what is P(B|A)?

    Answer: 0.3

    P(B|A) = P(A and B) / P(A) = 0.12 / 0.4 = 0.3.

  3. How many outcomes are possible when rolling two dice?

    Answer: 36

    Each die has 6 faces, so total outcomes = 6 × 6 = 36.

  4. A box has 3 defective and 7 good items. What is the probability a randomly selected item is good?

    Answer: 0.7

    P(good) = 7/10 = 0.7.

  5. Two independent events each have probability 1/3. What is the probability that NEITHER occurs?

    Answer: 4/9

    P(neither) = P(not A) × P(not B) = (2/3)(2/3) = 4/9.

  6. A sample space has 8 equally likely outcomes. Event E has 3 favorable outcomes. What is P(E)?

    Answer: 3/8

    P(E) = number of favorable outcomes / total outcomes = 3/8.

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  1. mdtp.ucsd.edu — Registration, test dates · verified Oct 2026
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  3. mdtp.ucsd.edu — Eligibility · verified Oct 2026