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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 scatter plot shows a positive correlation between study hours and test scores. What does this mean?

    Answer: As study hours increase, test scores also tend to increase.

    A positive correlation means that as one variable (study hours) increases, the other variable (test scores) also tends to increase.

  2. Which statement is true about interpreting data from a double bar graph?

    Answer: It compares two sets of data for the same categories.

    A double bar graph uses two bars per category to compare two related data sets (e.g., boys vs. girls scores per subject).

  3. Students record daily high temperatures in Omaha for one week: 42, 45, 38, 50, 47, 44, 41. What is the range?

    Answer: 12

    Range = maximum − minimum = 50 − 38 = 12.

  4. A circle graph (pie chart) is most useful for showing:

    Answer: How a total is divided into parts or percentages

    Circle (pie) charts are ideal for showing how a whole is divided into proportional parts, such as budget breakdowns or survey results.

  5. What is the probability of rolling a number greater than 4 on a standard six-sided die?

    Answer: 1/3

    Numbers greater than 4 on a die are 5 and 6 (2 outcomes), so probability = 2/6 = 1/3.

  6. When analyzing NeSA test score data, which measure tells you the most typical score earned by students?

    Answer: Median

    The median is the middle value that splits the data in half, representing the most typical score better than range, minimum, or maximum.

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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