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NeSA Data Analysis & 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 NeSA Data Analysis & Statistics flashcards as text

  1. A stem-and-leaf plot shows stems 4, 5, 6 with leaves 4|2,5 and 5|1,3,8 and 6|0,4. What is the greatest value?

    Answer: 64

    The stem 6 with leaf 4 gives 64, which is the greatest value in the plot.

  2. A pie chart shows that 25% of students prefer reading. If there are 200 students total, how many prefer reading?

    Answer: 50

    25% of 200 = 0.25 × 200 = 50 students.

  3. Which measure of central tendency is most affected by an outlier?

    Answer: Mean

    The mean uses all values in its calculation, so extreme values (outliers) can skew it significantly.

  4. A scatterplot shows points trending upward from left to right. What type of correlation does this represent?

    Answer: Positive correlation

    When data points trend upward from left to right, there is a positive correlation between the two variables.

  5. There are 5 red and 3 blue tiles in a bag. If one tile is drawn and not replaced, then another is drawn, what is the probability both are red?

    Answer: 20/56

    P(both red) = 5/8 × 4/7 = 20/56 = 5/14.

  6. Which graph would best display the percentage breakdown of students' favorite subjects?

    Answer: Pie chart

    A pie chart is ideal for showing how a whole is divided into percentage-based parts.

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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