initial commit / add all books

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diff --git a/1475/CH2/EX2.15/Example_2_15.sce b/1475/CH2/EX2.15/Example_2_15.sce
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+// Example 2.15 A random variable x follow Poisson distribution

+clc;

+clear;

+m=3;

+disp(m,"Parameter =");

+function value = poisson(m, x)

+value = (exp(-m)*(m^x))/(factorial(x));

+endfunction

+X_0=poisson(m,0);

+X_1=poisson(m,1);

+X_2=poisson(m,2);

+X_3=poisson(m,3);

+

+disp(X_0,"Probability when x=0 is ");

+disp(X_1,"Probability when x=1 is ");

+disp(X_2,"Probability when x=2 is ");

+disp(X_3,"Probability when x=3 is ");

+disp(X_0+X_1+X_2,"Probability when the variable assumes the value less than 3 is ");

+disp(1-(X_0+X_1),"Probability when the variable assumes the value at least 2 is ");

diff --git a/1475/CH2/EX2.15/Output_2_15.PNG b/1475/CH2/EX2.15/Output_2_15.PNG
new file mode 100755
index 000000000..88dd40f5d
--- /dev/null
+++ b/1475/CH2/EX2.15/Output_2_15.PNG