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Data Analysis and Statistics Flashcards

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

Read the first 6 Data Analysis and Statistics flashcards as text

  1. A survey of 200 Nebraska students found that 50 students walk to school. What percentage walks to school?

    Answer: 25%

    Percentage = (part / whole) × 100 = (50 / 200) × 100 = 25%.

  2. The range of a data set is 18. If the minimum value is 12, what is the maximum value?

    Answer: 30

    Range = maximum − minimum, so maximum = minimum + range = 12 + 18 = 30.

  3. Which graph would best display the comparison of science test scores among five different classes?

    Answer: Bar graph

    A bar graph is best for comparing discrete categories (classes), using the height of bars to show differences in scores.

  4. A table shows quiz scores for 4 students: 88, 92, 76, and 84. What is the mean score?

    Answer: 85

    Mean = sum of values / number of values = (88+92+76+84) / 4 = 340 / 4 = 85.

  5. In a frequency table, what does the 'frequency' column represent?

    Answer: The number of times each value occurs

    The frequency column in a table shows how many times each value or category appears in the data set.

  6. If a stem-and-leaf plot shows stems of 6 and 7, with leaves 6|2,5,8 and 7|1,4, what is the largest value?

    Answer: 74

    The largest stem is 7 and the largest leaf attached to it is 4, making the largest value 74.

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Sources & references

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  1. education.ne.gov — Eligibility, test dates, test delivery, exam dates, late registration, registration · verified Oct 2026