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//Caption: Exponential Distribution
//Example6.8
//Page183
clear;
clc;
//Example6.8(a): The probability that the execution time of programs < 4 minutes
T = 5; //Average execution time of the programs
X1 = 4;
F = 1-exp(-X1/T);
disp(F,'The probability that the execution time of programs < 4 minutes P(X<=4) is =');
//Example6.8(b): The probability that the execution time of programs > 6 minutes
X2 =6;
F = 1-exp(-X2/T);
disp(1-F,'The probability that the execution time of programs > 6 minutes P(X>=6) is =');
//Result
//The probability that the execution time of programs < 4 minutes P(X<=4) is =
// 0.5506710
//The probability that the execution time of programs > 6 minutes P(X>=6) is =
// 0.3011942
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