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Data Collection and Analysis Flashcards

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

Read the first 7 Data Collection and Analysis flashcards as text

  1. What is the mode of the data set 3, 7, 7, 9, 12, 7?

    Answer: 7

    The mode is the value that appears most often, which is 7.

  2. Stratified sampling involves:

    Answer: Dividing the population into subgroups then sampling each

    Stratified sampling splits the population into strata and samples within each.

  3. Which chart best displays a trend over time?

    Answer: Line graph

    Line graphs are ideal for showing changes across time intervals.

  4. An outlier in a data set is a value that:

    Answer: Lies far from the other values

    An outlier is a data point notably distant from the rest of the data.

  5. Quantitative data is best described as:

    Answer: Numerical and measurable

    Quantitative data consists of numerical values that can be measured.

  6. What percentage of values fall below the 75th percentile?

    Answer: 75%

    By definition, 75% of the data lies below the 75th percentile.

  7. Which is a disadvantage of using a convenience sample?

    Answer: It may not represent the population

    Convenience samples often introduce bias and poor representativeness.