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Probability, Statistics and Random Processes by Pappu Kousalya

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10

Curve Fitting

Prerequisites

Before you start reading this unit, you should:

  • Have some knowledge in partial differentiation
  • Be able to do some calculations like summations, logarithms of some numbers and their anti logarithms.
  • Have little knowledge in plotting of points

Learning Objectives

After going through this unit, you would be able to:

  • Know fitting a curve to a data
  • Obtain normal equations for any curve
  • Understanding the method of least squares in fitting any curve
INTRODUCTION

The general problem in curve fitting is to find an analytical expression to a given set of data points (xi, yi), where x is the independent variable and y is the dependent variable.

In practical statistics, the curve fitting enables us to represent the relationship ...

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