Refer to figure below to answer this question. If the government instituted a price ceiling of $12 in this market,  

Q5: (6 points)Give a scenario that hard margin SVM doesn’t work well, and we need soft margin SVMs.

If there is an overall deflation, a dollar today buys  ———–   a dollar tomorrow. 

You are measuring the relationship between two variables so you choose the CORREL function in Excel.  The correlation (r) is calculated as 0.97.  What can you conclude? Which scatter diagram would you expect to see? Scatter -0.97.png  Diagram A Scatter 0.91.png  Diagram B Scatter 0.png  Diagram C

Carlisle Community Hospital is a 324-bed hospital in Edgewater, PA.  During 20XX,  the hospital reported 400 live births and two maternal deaths after abortions. What is the maternal mortality rate? Report the rate to the nearest tenth per 100,000.

Q4: (8 points) Designing A Machine Learning System.Given user features, item features, and a user-item-rating matrix, if we formulate the problem of recommending personalized items for users as a ranking task, how can we use develop a personalized Learning To Rank (LTR) model for recommendations? Please specify: how you will use the data what is your model structure what is your objective function how to use the learned ranking model to conduct personalized recommendations.

Which Excel tool allows you to substitute different input values and immediately see the impact on outputs?

Use the report below from Community Hospital to calculate the ALOS for the OB/Gyn unit for this period. Round to one decimal place. Community Hospital July-December 20XX Unit Unit Bed Count Discharges Discharge Days Medicine 42 10,320 56,762 Oncology 20 4,906 22,624 Urology 10 936 2,798 OB/Gyn 30 3,100 18,388

The file Dow_data.xlsx contains monthly returns on 10 Dow stocks during a 20-year period. Which stock has the smallest inter-quartile range?

Q4: (3 points) Answer True or False only: In AdaBoosting, subsequent decision stumps are trained by reweighing misclassified samples of the previous decision stumps. In this way, weak learners are combined parallelly to create a strong learner.