Decision trees show the logic structure in a _____.
A. vertical form that resembles a tree with the roots at the bottom and the branches at the top
B. horizontal form that resembles a tree with the roots at the left and the branches to the right
C. vertical form that resembles a tree with the roots at the top and the branches at the bottom
D. horizontal form that resembles a tree with the roots at the right and the branches to the left
Answer: B
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Parentheses have higher precedence than the ____.
A. ++operator B. --operator C. *and/operators D. object access operator (.)
Write a program that reads the CSV file and calculates the average number of positive axillary nodes detected for patients that survived 5 years or longer, and the average number of positive axillary nodes detected for patients that died within 5 years. A significant difference between the two averages suggests whether or not the number of positive axillary nodes detected can be used to predict survival time. Your program should ignore the age and year fields for each record.
The UC Irvine Machine Learning repository contains many datasets for conducting computer science research. One dataset is the Haberman’s Survival dataset, available at http://archive.ics.uci.edu/ml/datasets/Haberman's+Survival and also included online with the source code for the book. The file “haberman.data” contains survival data for breast cancer patients in comma-separated value format. The first field is the patient’s age at the time of surgery, the second field is the year of the surgery, the third field is the number of positive axillary nodes detected, and the fourth field is the survival status. The survival status is 1 if the patient survived 5 years or longer and 2 if the patient died within 5 years. The case study in Listing 10.4 shows how to process a CSV file and makes a good starting point for this project.
?A comment in a Hypertext Markup Language (HTML) file appears in the browser window when a page is displayed.
Answer the following statement true (T) or false (F)
A user reports that every time he uses a search engine and clicks on a link to go to Web, site, he is instead taken to a site blocked by his company's content filter. The user is not trying to go to the blocked site, buthe needs to be able to successfully use the search egine to complete his assignment. Which of the following tools would a technician use to best resolve this issue?
a. Anti-malware software b. Factory pre-installation c. System restore d. Recovery console