1 / 28

Bell work

Bell work. Answer the following question on your own; What is the mean in the chart above? What is the median in the chart above ? http ://www.learner.org/courses/learningmath/data/session10/part_b/indexk2.html. What is a statistical question?.

khalil
Download Presentation

Bell work

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. Bell work Answer the following question on your own; • What is the mean in the chart above? • What is the median in the chart above? http://www.learner.org/courses/learningmath/data/session10/part_b/indexk2.html

  2. What is a statistical question? A statistical question is one that can be answered by collecting data and where there will be variability in that data.

  3. Which of the following is a statistical question and why? 1. How many days are in February? 2. How old is your favorite pet? 3. How old are the students in this class? 4. What percent of people like chocolate? 5. Do you like chocolate? 6. How many walls are in this room?

  4. Are there any questions about the characteristics of a statistical question?

  5. What is a the difference between a sample and the overall population? Turn to your partner and discuss

  6. Fifteen 8th grade students were surveyed about the benefits of early release days. • Identify the sample. • Identify the possible population.

  7. Turn to the person nearest you and discuss which of the following would be a good sample for the student population of this school? • All of the students who went to the Winter Concert. • The students sitting in the 4th seat of all the classrooms. • The students who take a bus to school. • The students who are serving detention today.

  8. Are there any questions at this time?

  9. What is a hypothesis?

  10. A hypothesis is Asupposition or proposed explanation made on the basis of limited evidence as a starting point for further investigation.

  11. Are there any questions about hypothesis or how to generate a hypothesis?

  12. What is a Survey?

  13. Survey questionnaires present a set of questions to a subject who with his/her responses will provide data to a researcher.

  14. What are different ways to record statistical data?

  15. Histogram • Circle graphs/ Pie chart • Bar graphs • Stem and leaf plot • Dot plot • Scatter plot

  16. histogram http://en.wikipedia.org/wiki/Histogram

  17. Circle graph/ pie chart https://www.google.com/search?q=circle+graph&espv=2&tbm=isch&tbo=u&source=univ&sa=X&ei=Se6qU5COJK_fsATs_IDwDA&ved=0CJ0BEIke&biw=1517&bih=

  18. Bar graph http://www.enchantedlearning.com/math/graphs/bargraph/

  19. Stem and leaf http://www.shmoop.com/basic-statistics-probability/stem-leaf-plots.html

  20. Dot plot http://www.mathsisfun.com/data/dot-plots.html

  21. Scatter plot http://www.sixsigmatrainingconsulting.com/uncategorized/scatter-plots-for-visualization-of-relationships/

  22. What is an inference?

  23. Aninference is an idea or conclusion that's drawn from evidence and reasoning. An inference is an educated guess based on the data. www.vocabulary.com/dictionary/inference

  24. What inferences can be made about Blood Donors? http://www.ck12.org/book/Basic-Probability-and-Statistics-A-Full-Course/r4/section/7.2/

  25. What inferences can be made about students favorite color? http://www.enchantedlearning.com/math/graphs/bargraph/

  26. What inferences can be made about sports? http://www.mathsisfun.com/definitions/pie-chart-pie-graph.html

  27. What inferences can be made about the profits of this company? http://mste.illinois.edu/courses/ci330ms/youtsey/barinfo.html

  28. Are there any questions about how to make inferences from different types of graphs?

More Related