The following data is a fragment from a large set of information from a student survey:Number of hours studiedGrade on last exam36046278965The passing grade of the last exam is known to be 65. Which of the following correctly describes avalid data analysis method and information that could be determined from this data through thatanalysis?Classification analysis could be used to determine the number of students who passed the exam and studied forless than 3 hours.Cluster analysis could be used to determine the number of students who failed the exam and studied for morethan 5 hours.Association rule mining could be used to determine if there are groups of students who share similar numbersof hours studied and grades on the last exam.Anomaly detection could be used to determine the typical number of hours a student who achieved the passmark on the exam studied.

The passing grade of the last exam is known to be 65. Which of the following correctly describes a valid data analysis method and information that could be determined from this data through that analysis?

The passing grade of the last exam is known to be 65. Which of the following correctly describes a valid data analysis method and information that could be determined from this data through that analysis?

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Concept explainers

Normalization

Normalization is the process of eliminating redundancy in a database by organizing the data into several smaller tables. The large tables are normalized (converted) into smaller tables by using normalization rules, so that a database administrator can easily handle them. It also eliminates insertion, deletion, and update anomalies.

Question

The following data is a fragment from a large set of information from a student survey:
Number of hours studied
Grade on last exam
3
60
4
62
7
89
65
The passing grade of the last exam is known to be 65. Which of the following correctly describes a
valid data analysis method and information that could be determined from this data through that
analysis?
Classification analysis could be used to determine the number of students who passed the exam and studied for
less than 3 hours.
Cluster analysis could be used to determine the number of students who failed the exam and studied for more
than 5 hours.
Association rule mining could be used to determine if there are groups of students who share similar numbers
of hours studied and grades on the last exam.
Anomaly detection could be used to determine the typical number of hours a student who achieved the pass
mark on the exam studied.

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