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Problem Solving and Data Analysis Flashcards

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

Read the first 8 Problem Solving and Data Analysis flashcards as text

  1. A box plot for a data set 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.

  2. A graph shows a strong positive correlation between hours of TV watched and snack consumption. What conclusion is best supported?

    Answer: As TV hours increase, snack consumption tends to increase

    Correlation shows a relationship, not causation. The correct interpretation states the association without claiming cause.

  3. A sample of 5 quiz scores is: 72, 85, 90, 78, 85. What is the mode?

    Answer: 85

    The mode is the most frequently occurring value. 85 appears twice; all others appear once.

  4. A pie chart shows: Science 30%, Math 25%, English 20%, History 15%, Arts 10%. In a school of 400 students, how many study Math?

    Answer: 100

    Math students = 25% × 400 = 0.25 × 400 = 100.

  5. A study shows that children who read more books have higher test scores. Which statement is most accurate?

    Answer: Book reading is correlated with higher test scores

    Without a controlled experiment, we can only conclude correlation exists, not causation.

  6. A histogram shows test scores: 60-70 (5 students), 70-80 (15 students), 80-90 (12 students), 90-100 (8 students). What percent of students scored 80 or above?

    Answer: 50%

    Scored 80+: 12+8 = 20 students. Total = 5+15+12+8 = 40. Percentage = 20/40 = 50%.

  7. The probability that event A occurs is 0.4 and the probability that event B occurs is 0.3. If A and B are independent events, what is P(A and B)?

    Answer: 0.12

    For independent events: P(A and B) = P(A) × P(B) = 0.4 × 0.3 = 0.12.

  8. A line of best fit for data has equation y = -2x + 50. For what value of x does the model predict y = 10?

    Answer: 20

    -2x + 50 = 10 → -2x = -40 → x = 20.