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Quantitative Reasoning Flashcards

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

Read the first 7 Quantitative Reasoning flashcards as text

  1. What is the median of the data set {3, 7, 9, 2, 5}?

    Answer: 5

    Sorted: {2, 3, 5, 7, 9}; the middle value is 5.

  2. In a class of 30 students, 12 prefer mathematics. What percentage prefer mathematics?

    Answer: 40%

    12 / 30 = 0.40 = 40%.

  3. The mean of five numbers is 12. Four of them are 10, 14, 11, and 13. What is the fifth number?

    Answer: 12

    Total sum = 60; 10 + 14 + 11 + 13 = 48; fifth number = 60 - 48 = 12.

  4. A bag contains 3 red, 4 blue, and 5 green marbles. What is the probability of randomly drawing a blue marble?

    Answer: 1/3

    P(blue) = 4 / 12 = 1/3.

  5. The range of the set {x, 4, 9, 2} is 10. What is the value of x?

    Answer: 12

    If x = 12, range = 12 - 2 = 10, which satisfies the condition.

  6. A pie chart represents a $500 budget, and housing takes 40%. How much is allocated to housing?

    Answer: $200

    $500 × 0.40 = $200.

  7. A data set has a mean of 20 and a standard deviation of 4. What is the z-score of the value 28?

    Answer: 2

    z = (28 - 20) / 4 = 8 / 4 = 2.