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Data Interpretation and Probability Flashcards

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

Read the first 7 Data Interpretation and Probability flashcards as text

  1. A bar graph shows monthly sales: Jan=40, Feb=55, Mar=35, Apr=70. What is the mean monthly sales?

    Answer: 50

    Mean = (40+55+35+70)/4 = 200/4 = 50.

  2. A bag contains 3 red, 5 blue, and 2 green marbles. What is the probability of NOT picking a blue marble?

    Answer: 2/5

    Non-blue marbles = 3+2 = 5 out of 10 total, so probability = 5/10 = 2/5.

  3. A pie chart shows 25% of students prefer math, 40% science, 20% English, and 15% history. If there are 200 students, how many prefer science?

    Answer: 80

    40% of 200 = 0.40 × 200 = 80 students.

  4. Two fair coins are flipped. What is the probability of getting exactly one head?

    Answer: 1/2

    Outcomes with exactly one head: HT and TH out of {HH, HT, TH, TT} = 2/4 = 1/2.

  5. A line graph shows temperatures: Mon=72°, Tue=68°, Wed=75°, Thu=71°, Fri=74°. On which day was the temperature lowest?

    Answer: Tuesday

    Tuesday's temperature of 68° is the lowest value in the data set.

  6. A table shows test scores: 60, 70, 70, 80, 90, 90, 90. What is the mode?

    Answer: 90

    90 appears three times, more than any other value, making it the mode.

  7. A spinner has 8 equal sections numbered 1–8. What is the probability of landing on a number greater than 5?

    Answer: 3/8

    Numbers greater than 5 are 6, 7, and 8 — that is 3 out of 8 sections.

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