An Introduction to Statistical Learning: with Applications in R (Springer Texts in Statistics)
13th Edition
ISBN: 9781461471370
Author: Gareth James
Publisher: SPRINGER NATURE CUSTOMER SERVICE
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Chapter 2, Problem 9E
a.
Explanation of Solution
Predictors
- Name is qualitative, the rest are quantitative.
- However, looking at summary(), it is notic...
b.
Explanation of Solution
Range of predictor
- The range of each quantitative pred...
c.
Explanation of Solution
Mean and standard deviation of predictor
- Using signif() function, it can be round to two significant digits...
d.
Explanation of Solution
Range,median and standard deviation of predictor
- Using round() function, it rounds to two decimal places rather than two significant digits...
e.
Explanation of Solution
Simple linear regression
- It is easy to see that if xi is replac...
f.
Explanation of Solution
Predictors
- After plotting predictors graphically, it will be
library(pheatmap)
pheatmap(t(scale(as...
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3. Problem Description: Define the Circle2D class that contains:
Two double data fields named x and y that specify the center of the circle with get
methods.
• A data field radius with a get method.
•
A no-arg constructor that creates a default circle with (0, 0) for (x, y) and 1 for radius.
•
A constructor that creates a circle with the specified x, y, and radius.
•
A method getArea() that returns the area of the circle.
•
A method getPerimeter() that returns the perimeter of the circle.
•
•
•
A method contains(double x, double y) that returns true if the specified point (x, y) is inside
this circle. See Figure (a).
A method contains(Circle2D circle) that returns true if the specified circle is inside this
circle. See Figure (b).
A method overlaps (Circle2D circle) that returns true if the specified circle overlaps with this
circle. See the figure below.
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(a)
(b)
(c)<
Figure (a) A point is inside the circle. (b) A circle is inside another circle.
(c) A circle overlaps another…
1. Explain in detail with examples each of the following fundamental security design principles: economy of mechanism, fail-safe default, complete mediation, open design, separation of privilege, least privilege, least common mechanism, psychological acceptability, isolation, encapsulation, modularity, layering, and least astonishment.
Security in general means the protection of an asset. In the context of computer and network security, explore and explain what assets must be protected within an online university. What the threats are to the security of these assets, and what countermeasures are available to mitigate and protect the organization from such threats. For each of the assets you identify, assign an impact level (low, moderate, or high) for the loss of confidentiality, availability, and integrity. Justify your answers.
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An Introduction to Statistical Learning: with Applications in R (Springer Texts in Statistics)
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