EASTERN MEDITERRANEAN UNIVERSITY FACULTY OF ENGINEERNG Department of Industrial Engineering IENG461 System Modeling and Simulation Course Fall 2012-2013.

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Presentation transcript:

EASTERN MEDITERRANEAN UNIVERSITY FACULTY OF ENGINEERNG Department of Industrial Engineering IENG461 System Modeling and Simulation Course Fall Laboratory

Open Microsoft office> Microsoft Excel File> New> Blank Workbook

Formula: =NORM.DIST(x,mean,standard_dev,cumulative) Normal Distribution function NORM.DIST gives the probability that a number falls at or below a given value of a normal distribution. Formula: =NORM.INV(probability,mean,standard_dev,) NORM.INV is the inverse of the NORM.DIST function. It calculates the x variable given a probability. The percentage of women less than or equal to 68 inches is: =NORM.DIST(68, 65.5, 2.5, TRUE) = 84.13% How tall would a woman need to be if she wanted to be among the tallest 75% of American women? =NORM.INV(0.25, 65.5, 2.5) = inches

NORMDIST FUNCTION for Probability Formula: =NORM.DIST(x,mean,standard_dev,cumulative)) Example1: Normal Distribution function

Write the formula in B4 Normal Distribution function

Enter Normal Distribution function

Example2: Normal Distribution function

Write the formula in B5 Normal Distribution function

Enter Normal Distribution function

Simulate standard random normal variable Formula: =NORM.DIST(RAND(),mean,standard_dev,cumulative) Example3:

Enter and drag

Simulate standard random normal variable Formula: =NORM.INV(RAND(),mean,standard_dev) Example4:

Enter and drag

Simulate uniform random variables Formula: =RAND()*(b-a)+a Example5:

Enter and drag

Simulate exponential random variables Formula: =EXPONDIST(x,lamba,cumulative) For random x : =EXPONDIST(RAND(),lamba,cumulative) Example6:

Enter and drag

Another way! First File > Options > Add-Ins > Analysis Tool Pack > Go> Ok Now : Data> Data Analysis> Random Number Generation>ok

Another way! File > Options > Add-Ins > Analysis Tool Pack > Go> Ok Now : Data> Data Analysis> Random Number Generation>ok You can choose the distribution and fill the blanks easily.

The End