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- Basic Math and Science Data Interpretation and Probability Questions and Answers 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.

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  1. A table shows the probability of rain for 5 days: Mon=0.2, Tue=0.6, Wed=0.5, Thu=0.1, Fri=0.8. On which day is rain LEAST likely?

    Answer: Thursday

    Thursday has the lowest probability of rain at 0.1, meaning only a 10% chance.

  2. A line graph shows a company's monthly profits declining steadily from January to June. Which term best describes this trend?

    Answer: Negative linear trend

    A steady decline over time is a negative linear trend, meaning the value decreases consistently.

  3. From a group of 5 students, 2 are chosen at random for a committee. How many different combinations are possible?

    Answer: 10

    The number of combinations is C(5,2) = 5!/(2!×3!) = 10.

  4. A stem-and-leaf plot shows data with stems 2, 3, 4 and leaves 2|3 5 7, 3|1 4 8, 4|0 2. What is the largest value in the data set?

    Answer: 42

    The largest stem is 4 and its largest leaf is 2, giving the value 42.

  5. Two events A and B are independent. P(A) = 0.4 and P(B) = 0.5. What is P(A and B)?

    Answer: 0.2

    For independent events, P(A and B) = P(A) × P(B) = 0.4 × 0.5 = 0.2.

  6. A box plot shows: minimum=10, Q1=20, median=30, Q3=45, maximum=60. What is the interquartile range (IQR)?

    Answer: 25

    IQR = Q3 − Q1 = 45 − 20 = 25.

  7. A survey of 80 people finds that 40% prefer Brand X and 35% prefer Brand Y. Based on this data, if 200 people are surveyed next time, how many would be expected to prefer Brand X?

    Answer: 80

    Expected Brand X preference = 40% of 200 = 0.40 × 200 = 80 people.