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Problem
The dataset ToyotaCorolla.csv contains data on used cars on sale during the late summer of 2004 in the Netherlands. It has 1436 records containing details on 38 attributes, including Price, Age, Kilometers, HP, and other specifications.
a. Explore the data using the data visualization capabilities of R. Which of the pairs among the variables seem to be correlated?
b. We plan to analyze the data using various data mining techniques described in future chapters. Prepare the data for use as follows:
i. The dataset has two categorical attributes, Fuel Type and Metallic. Describe how you would convert these to binary variables. Confirm this using R's functions to transform categorical data into dummies.
ii. Prepare the dataset (as factored into dummies) for data mining techniques of supervised learning by creating partitions in R. Select all the variables and use default values for the random seed and partitioning percentages for training (50%), validation (30%), and test (20%) sets. Describe the roles that these partitions will play in modeling.
Complete following task. In each exercise, represent answer in both DBDL and with diagram. You may use any of styles for diagram. Create database to produce following reports. Do not use any surrogate keys in design.
Draw an Entity Relationship diagram for the system and Identify the table design for the database displaying all the fields/attributes. Ensure that all tables are in 3NF. You also need to identify the primary keys and foreign keys, where applicable..
Convert each of the previously identified entities to third normal form. Make certain that the necessary foreign keys have been added to the final tables to support the relationship shown on your initial ER model.
To get me started I need SQL script example for each table and I will fill out the 9 other records.
an organization has several operational systems customer relationship management crm for marketing and sales enterprise
To allay these concerns and to improve the ease and efficiency with which the apartment managers conduct their daily business, the company is proposing the development of a centralized database that the managers can use to track the daily business..
Analyze the fundamentals of PKI, and determine the primary ways in which its features and functions could benefit your organization and its information security department.
In a Word document, prepare the following for each DML requirement you came up during Step II: The description for your requirement.
Create a database using professional principles and standards. Use a relational database software application to develop a database implementing the logical design into a physical design.
Choose between Boolean operators and "limits" when conducting systematic reviews. Describe three unique features of the PubMed database.
The file New Database window opens, then type the word Client as the name for this file where the cursor is blinking, then click the create bottom.
How would your answers to the two questions change, if at all, if your system did not support indexes with multiple-attribute search keys?
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