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Georgia Milestones Algebra data and statistical reasoning quiz quiz

12questions. Pick an answer and you'll see why right away.

  1. A box plot has minimum 4, Q1=8Q_1 = 8, median 12, Q3=18Q_3 = 18, maximum 25. What is the IQR?

  2. A distribution has a long tail extending to the right. How is it described?

  3. Find the median of the data set 4,6,7,9,244, 6, 7, 9, 24.

  4. A data set has an extreme outlier. Which measure of center best represents the typical value?

  5. On a scatterplot, as xx increases, yy tends to decrease, with points close to a line. How is the association described?

  6. A curved, U-shaped scatterplot has what form?

  7. A line of best fit is y^=60+4x\hat{y} = 60 + 4x (hours studied vs. score). What does the slope 4 represent?

  8. Using y^=60+4x\hat{y} = 60 + 4x, predict the score for 6 hours of studying.

  9. Data cover xx from 1 to 10. Predicting yy at x=30x = 30 is an example of:

  10. A correlation coefficient is r=−0.92r = -0.92. What does it indicate?

  11. Ice-cream sales and drowning incidents are positively correlated. What is the best conclusion?

  12. A line of best fit predicts y^=50\hat{y} = 50 for a point whose actual value is y=47y = 47. What is the residual?