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Problem Solving & Data Analysis Flashcards

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

Read the first 7 Problem Solving & Data Analysis flashcards as text

  1. A scatterplot shows a strong positive linear association. As x increases, y tends to:

    Answer: Increase

    A positive association means y increases as x increases.

  2. A line of best fit is y = 2x + 3. What is the predicted y when x = 5?

    Answer: 13

    y = 2(5) + 3 = 10 + 3 = 13.

  3. In the model y = 2x + 3, what does the slope of 2 represent?

    Answer: The change in y per unit increase in x

    Slope is the rate of change of y for each one-unit increase in x.

  4. A correlation coefficient of r = -0.95 indicates:

    Answer: A strong negative linear relationship

    An r value close to −1 indicates a strong negative linear relationship.

  5. Which type of model best fits data that doubles at a constant percentage rate?

    Answer: Exponential

    Constant percentage growth is modeled by an exponential function.

  6. Using y = -3x + 12, what is the value of x when y = 0?

    Answer: 4

    Setting 0 = −3x + 12 gives 3x = 12, so x = 4.

  7. If a residual in a regression model is negative, the predicted value is:

    Answer: Greater than the actual value

    Residual = actual − predicted, so a negative residual means predicted exceeds actual.