Page 208 - DMTH404_STATISTICS

Statistics Sachin Kaushal, Lovely Professional University

Notes Unit 15: Exponential Distribution and Normal

Distribution

CONTENTS
Objectives

Introduction
15.1 Exponential Distribution
15.1.1 Probability Density Function
15.2 Uniform Distribution (Continuous Variable)
15.3 Normal Distribution

15.3.1 The Conditions of Normality
15.3.2 Probability Density Function
15.3.3 Shape of Normal Probability Curve

15.3.4 Properties of Normal Probability Curve
15.3.5 Probability of Normal Variate in an interval
15.3.6 Normal Approximation to Binomial Distribution
15.9.7 Normal Approximation to Poisson Distribution
15.3.8 Fitting a Normal Curve

15.4 Summary
15.5 Keywords
15.6 Self Assessment

15.7 Review Questions
15.8 Further Readings

Objectives

After studying this unit, you will be able to:

 Discuss the exponential distribution
 Explain uniform distribution
 Describe normal distribution

Introduction

The knowledge of the theoretical probability distribution is of great use in the understanding
and analysis of a large number of business and economic situations. For example, with the use
of probability distribution, it is possible to test a hypothesis about a population, to take decision
in the face of uncertainty, to make forecast, etc.

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