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Data Analysis Flashcards

6 cards from real CPE 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 flashcards as text

  1. What is the mean of the data set: 4, 8, 6, 10, 2?

    Answer: 6

    Mean = sum of values / number of values = (4+8+6+10+2)/5 = 30/5 = 6.

  2. What type of graph is best for showing trends over time?

    Answer: Line graph

    Line graphs connect data points over time, clearly showing trends, patterns, and changes in data.

  3. What is the range of the data set: 3, 7, 1, 9, 5?

    Answer: 8

    Range = maximum value - minimum value = 9 - 1 = 8.

  4. What does a pie chart represent?

    Answer: Parts of a whole as percentages

    Pie charts display data as proportional slices of a circle, showing how individual parts contribute to the total.

  5. What is correlation?

    Answer: A statistical relationship between two variables

    Correlation measures the strength and direction of a relationship between two variables, without implying that one causes the other.

  6. What is the mode of: 2, 3, 3, 4, 5, 3, 6?

    Answer: 3

    The mode is the value that appears most frequently. The number 3 appears three times, more than any other value.