1 / 35

Stats: Review for Test 1

Stats: Review for Test 1. Chapter 1 - 6. Please select a Team. Team Pie Chart Team Median Team Mode Team Variance Team IQR Team Least Squares Team Normal Team Histogram. Response Grid. Mathemania. Math 256 – Test A. Normal Distribution. LSRL. Graphs. Cent & Spr. MISC. 10. 10.

eben
Download Presentation

Stats: Review for Test 1

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Stats: Review for Test 1 Chapter 1 - 6

  2. Please select a Team. • Team Pie Chart • Team Median • Team Mode • Team Variance • Team IQR • Team Least Squares • Team Normal • Team Histogram Response Grid

  3. Mathemania Math 256 – Test A Normal Distribution LSRL Graphs Cent & Spr MISC 10 10 10 10 10 20 20 20 20 20 30 30 30 30 30 40 40 40 40 40 50 50 50 50 50 Final Question

  4. Center and Spread

  5. What is the median of this list of numbers: 116, 118, 121, 121, 121, 122, 128, 133, 138, 191 • 121 • 121.5 • 131 • 75 Non-Response Grid Go Home

  6. What is the mean of 4, 4, 5, 6, 21 • 4 • 5 • 8 • None of the above Non-Response Grid Go Home

  7. What is the third quartile of this list?28, 31, 34, 35, 37, 41, 42, 42, 42, 4749, 51, 52, 52, 60, 61, 67, 72, 75, 77 • 60.5 • 39 • 48 • 28 Non-Response Grid Go Home Check Score

  8. What is the standard deviation of the following sample data?3, 5, 5, 7, 8, 11 • 6.5 • 2.57 • 2.81 Non-Response Grid Go Home Check Score

  9. The boxplot below suggests the data is… • Uniform • Symmetric • Skewed to the left • Skewed to the right Non-Response Grid Go Home Check Score

  10. Least Squares Regression Line

  11. Estimate the correlation of this scatter plot. • r = 0.2 • r = 0.5 • r = 0.7 • r = 0.9 Non-Response Grid Go Home http://www.seattlecentral.edu/qelp/sets/047/047.html

  12. Which of these graphs has the smallest correlation • A • B • C • D A B D C Non-Response Grid Go Home

  13. Which of these graphs has the weakest correlation? • A • B • C • D A B D C Non-Response Grid Go Home Check Score

  14. Find the equation for the Least Squares Regression Line for the data below • Y=1.73 - 0.76X • Y = 0.92x + 0.52 • Y = 1.73x – 0.76 • Y = 0.52x + 0.92 X Y 3 5 4 7 5 6 7 11 8 14 Non-Response Grid Go Home Check Score

  15. The data point marked with a star has • A negative residual • A positive residual • A residual of zero • A zero value for the correlation Non-Response Grid Go Home Check Score

  16. Graphs

  17. If you can make a bar chart from data, then you can make a pie chart from it as well. • True • False Non-Response Grid Go Home

  18. This stem and leaf plot suggests the distribution of data is… • Skewed to the left • Skewed to the right • Symmetric • Uniform 10 6, 6, 7,9 11 1, 2, 2, 4, 5, 6, 7 12 0, 3, 4, 4, 5 13 4, 6, 14 8 15 0 16 17 18 8 Non-Response Grid Go Home

  19. This is a question about graphs. • Choice One • This is the correct answer • Choice Three • Choice Four Non-Response Grid Go Home Check Score

  20. This graph has an outlier that is not influential • Graph A • Graph B • Graph C • Graph D A B D C Non-Response Grid Go Home Check Score

  21. Based on the scatter plot below, you can do better on the test by taking the test earlier. • True • False Non-Response Grid Go Home Check Score

  22. Normal Distribution

  23. The histogram below suggests a normal distribution. • True • False Non-Response Grid Go Home Source:  Sokal, R.R. and F.J. Rohlf, 1968. Biometry, Freeman Publishing Co., p 109.  Original data from Sokal, R.R. and P.E. Hunter. 1955. A morphometric analysis of DDT-resistant and non-resistant housefly strains Ann. Entomol. Soc. Amer. 48: 499-507.

  24. The length of leaves of a particular tree is N(8.0 cm, 0.3 cm). Approximately 95% of leaves are between what two lengths? • 8 cm and 8.3 cm • 7.7 cm and 8.3 cm • 7.4 cm and 8.6 cm • 7.1 cm and 8.9 cm Non-Response Grid Go Home Check Score

  25. The distribution of the length of house fly wings is approximately N(4.6 mm, 0.3 mm). What proportion of house flies have a wingspan between 4.1 mm and 4.4 mm? • 0.1000 • 0.6667 • 1.6667 • 0.2047 Non-Response Grid Go Home Check Score

  26. Temperatures inside a kiln are normally distributed with a mean of 1000 and a standard deviation of 50. What proportion of the interior exceeds 1125 degrees? • 0.62% • 12.5% • 2.5% • 49.38% Non-Response Grid Go Home Check Score

  27. The time it takes to complete an exam is approximately normal with a mean of 40 and st. dev. of 10 minutes. How much time will it take for 90% of the students to complete the exam? • 49 min • 52.8 min • 44.4 min • 54.4 min Non-Response Grid Go Home Check Score

  28. What room are you in? • BI - 4 • BI - 5 • BI - 6 • BI - 9 Non-Response Grid Go Home

  29. Miscellaneous

  30. Who is the GRCC President? • Eileen Ely • Barak Obama • Chrisine Gilliland • Ty Sommerville Non-Response Grid Go Home Check Score

  31. Which of the following pop stars is male? • Taylor Swift • Miley Cyrus • Psy • Beyonce Non-Response Grid Go Home Check Score

  32. Who wrote the book “How to Lie with Statistics?” by Darrel Huff • David Nelson • Brenda Praggastis • David Moore • Darrel Huff Non-Response Grid Go Home

  33. How many red stripes are there on the US flag? • 7 • 6 • 13 • 25 Non-Response Grid Go Home Check Score

  34. Which of the following data is quantitative continuous? • The number of weeks a movie stays in a theater. • The number of tickets sold to the movie each day. • The number of times the movie is shown on each day. • The length of the movie in minutes. Non-Response Grid Go Home Check Score

  35. Team Scores Go Home

More Related