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Data Interpretation and Probability Flashcards

7 cards from real BMST 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 chart shows monthly sales: Jan=120, Feb=95, Mar=150, Apr=110. What is the mean monthly sales?

    Answer: 118.75

    Mean = (120+95+150+110)/4 = 475/4 = 118.75.

  2. A bag contains 4 red, 6 blue, and 2 green marbles. What is the probability of drawing a blue marble?

    Answer: 1/2

    P(blue) = 6/12 = 1/2.

  3. A pie chart shows 40% of students prefer math, 35% prefer science, and 25% prefer English. If there are 200 students, how many prefer science?

    Answer: 70

    35% of 200 = 0.35 × 200 = 70 students.

  4. A line graph shows temperatures (°F): Mon=72, Tue=68, Wed=75, Thu=70, Fri=73. What is the median temperature?

    Answer: 72

    Ordered values: 68, 70, 72, 73, 75 — the middle value is 72.

  5. Two dice are rolled. What is the probability that the sum equals 7?

    Answer: 1/6

    There are 6 ways to get a sum of 7 out of 36 total outcomes: 6/36 = 1/6.

  6. A table shows quiz scores: 85, 90, 78, 92, 88, 76, 95. What is the range of these scores?

    Answer: 19

    Range = highest − lowest = 95 − 76 = 19.

  7. A spinner has 8 equal sections numbered 1–8. What is the probability of landing on an even number?

    Answer: 1/2

    Even numbers 2,4,6,8 = 4 sections out of 8, so P = 4/8 = 1/2.