Week 10
Resources
Exam Materials
Practice material
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- Questions highlighted are what I deem helpful review for our test
- Review answers
Practice problems in HW 6-7
Unfinished examples from class notes
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There is an extra practice problem (32.10) in there that is very helpful
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Will NOT be cumulative: Chapter 24 - Chapter 35
Chapter 31 - 35: Test will use distributions that we learn but will not be asking word problems
- Think Example 1 from Chapter 32 notes: Tests more on joint pdf than exponential distribution
Weeks 7 - 9, with some from Week 10
HW 6-7
There will NOT be a question using a transformation of X and Y. For example, a question like HW 7, NTB #3 will NOT be on the test.
- However, a question like 32.10 will be on the test. In that question we are asked about \(P(X<Y)\)
During the exam, I will give you scratch paper!
On the Horizon
Announcements 11/27
Final Exam on 12/4 (one week from today)
Will post materials this afternoon
Will NOT be cumulative: Chapter 24 - Chapter 35
Be on the lookout for the official course evaluation from SPH
Helps me identify the most important areas for improvement
Way to directly voice any concerns or appreciation to my supervisors
Announcements 11/29
Final Exam on 12/4
Again: be on the lookout for the official course evaluation from SPH
Helps me identify the most important areas for improvement
Way to directly voice any concerns or appreciation to my supervisors
Please check that all your homework grades have check marks!
There are some missing homeworks!
You need to submit all homeworks by end of day 12/8 to get credit!!
Class Exit Tickets
Statistician of the Week: Florence Nightingale
Nightingale was a nurse who is considered to be the founder of modern nursing. In particular, she was admant about the importance of hygiene and sanitary conditions. She was born into a wealthy and well-connected family and had a large amount of privilege. Educated by her father, she showed an ability toward making analytic arguments at an early age. For her work, she was awarded the Royal Red Cross, the Lady of Grace of the Order of St John, and the Order of Merit.
Topics covered
Nightingale was a nurse and statistician who used her analytic abilities to better understand and improve public health. She served in the Crimean War where Britain and France fought against the Russian invasion of the Ottoman Empire. Nightingale worked to convince Queen Victoria that poor sanitation and overcrowding were causing unnecessary death. She was able to show, for example, that peacetime soldiers (who lived in poorly kept barracks) were dying in much higher number than comparable civilian men. Her genius was to collect data meticulously and to display it in ways that were accessible to the general public. Her visualizations are lauded as pioneering and the first of their kind to tell effective stories of important issues.
Relevant work
- RJ Andrews, “Florence Nightingale’s Data Revolution” in Scientific American 327, 2, 78-85, 2022. doi:10.1038/scientificamerican0822-78,
- S Julious, “On the battlefields of the Crimean War and in the hills of Sheffield, Florence Nightingale’s legacy lives on”, The Tribune, Feb 17, 2023.
Outside links
Please note the statisticians of the week are taken directly from the CURV project by Jo Hardin.
Muddiest Points
1. What were we solving for in the Exponential RV example?
In this example, I was demonstrating how we could make a joint pdf from \(n\) exponential distributions. The joint pdf was for the random variable \(M\) which was the minimum of \(n\) randomly distributed arrival times (\(X_i\)).