1. Consider the following table. xi 4.0 4.2 4.5 4.7 5.1 5.5 5.9 195.14 224.87 6.3 256.73 Y₁ 102.56 113.18 130.1178 142.05 167.53 a) Construct the least squares polynomial of degree 4 and compute the error. b) Construct the least squares approximation of the form be ax, and compute the error.

1. Consider the following table. xi 4.0 4.2 4.5 4.7 5.1 5.5 5.9 195.14 224.87 6.3 256.73 Y₁ 102.56 113.18 130.1178 142.05 167.53 a) Construct the least squares polynomial of degree 4 and compute the error. b) Construct the least squares approximation of the form be ax, and compute the error.

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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Question

1. Consider the following table.
xi
4.0
4.2
4.5
4.7
5.1
5.5
5.9
6.3
256.73
Y₁
102.56 113.18 130.1178 142.05 167.53
195.14 224.87
a) Construct the least squares polynomial of degree 4 and compute the error.
b) Construct the least squares approximation of the form be ax, and compute the
error.

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