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?

Which measure of central tendency is affected by outliers?

Based on the information below, what is the postoperative infection rate for University Hospital for the first quarter of this year. Express as a percent. Round to two decimal places. Number of surgical operations 307 Number of patients operated on 290 Number of postoperative infections 10 Number of postoperative deaths (within 10 days) 5

Calculate the C-section rate based on the information in the table below. Express as a percent. Round to two decimal places. Community Hospital  Obstetrics Service October 20XX Obstetrics admissions 153 Obstetrics discharges                        Delivered 146                      Not delivered 5                      Aborted 2 Vaginal Deliveries 125 C-Sections 21

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

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

The length of the box in the box plot portrays the

Use the data below to calculate the Postoperative Mortality rate for Heartland Hospital during June. Express as a percent.  Round to two decimal places. Heartland Hospital June 20XX Live Discharges 500 Deaths 10                Within 10 days after surgery 3                More than 10 days after surgery 7 Number of Operations 504 Number of Patients Operated On 498

Q6: (15 points)In bipartite ranking, documents are grouped into a “relevant (+)” set and a “non-relevant (–)” set. Since relevant documents should appear earlier than non-relevant documents, the ranking error is given by: Total number of disordered pairs/Total number of item pairs between the relevant set and the non-relevant set. Below are a list of documents and their golden-standard relevance labels, the prediction results of a ranking model, and the prediction results of a binary classification model. Please calculate the bipartite ranking error and the binary classification error.​   Document ID Golden-standard relevance labels The predicted scores of the ranking model The predicted labels of the classification models D1 – 0.91 + D2 – 0.82 + D3 + 0.73 + D4 + 0.64 + D5 + 0.55 + D6 + 0.46 + D7 – 0.37 – D8 – 0.28 –

The population of a country is 250,000. In 2017, real GDP was 2.5 billion and Price Index was 100. What is their nominal GDP?