Blog

As part of a community class, student nurses are developing curriculum to teach expectant parents the importance of having their child properly secured in a child safety seat. During the class, the students are going to have a safety officer examine the car seats that the parents have installed in their vehicle. This is an example of which type of prevention?

A community health nurse is teaching a group of recent graduates about the large variety of factors that influence an individual’s health or lack thereof. The nurse is referring to the Healthy People 2020 report from the U.S. Department of Health and Human Services as a teaching example. Of the following aspects discussed, which would be considered a determinant of health that is outside the focus of this report?

Q3: (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.

Q22(20 points): Let us consider a one-dimensional space. We wish to perform a hierarchical clustering of the points 2, 6, 10, 14, and 18. Show what happens at each step until there are two clusters and give these two clusters. Your answer should be a table with a row for each step; the row should contain: The members of the new cluster formed  (5 points). Its centroid  (5 points). If you are merging a cluster C1 = {x, y, z} with centroid c1, and a cluster C2 = {p, q} with centroid c2, use the centroid–centroid distance |c2 – c1| to measure the distance between C1 and C2. For the merged cluster, you should report both: The members of the new cluster (5 points). The centroid obtained after merging (5 points).  

Q4: (3 points) Answer True or False Only: Ensemble of classifiers may or may not be more accurate than any of its individual model.

Q21: (10 points)Recall that the equation of an ellipse in the 2-dimensional plane is

Q9: (3 points) Answer True or False only: In RL, the agent learns from labeled data, which we call trajectories, provided during training.

Q6: (3 points) Answer True or False only: All the Linear regression models, SVM, neural networks can be used for the ranking inference model of the Learning to Rank tasks.

The Great Depression was marked by a significant decline in [BLANK-1].

Which event marked a significant confrontation between capitalism and communism during the Cold War?