initial commit / add all books

1 files changed, 39 insertions, 0 deletions

diff --git a/149/CH23/EX23.7/ex7.sce b/149/CH23/EX23.7/ex7.sce
new file mode 100755
index 000000000..913fbe245
--- /dev/null
+++ b/149/CH23/EX23.7/ex7.sce
@@ -0,0 +1,39 @@
+clear

+clc

+disp('the first row denotes the size of item')

+A(1,:)=[6 7 8 9 10 11 12];

+disp('the second row denotes the corresponding frequency (f)')

+A(2,:)=[3 6 9 13 8 5 4];

+disp('the third row denotesthe corresponding deviation (d)')

+A(3,:)=[-3 -2 -1 0 1 2 3];

+disp('the fourth row denotes the corresponding f*d ')

+for i=1:7

+  A(4,i)=A(2,i)*A(3,i);

+end

+disp('the fifth row denotes the corresponding f*d^2')

+for i=1:7

+  A(5,i)=A(2,i)*(A(3,i)^2);

+end

+A

+b=0;

+disp('sum of fourth row elements=')

+for i=1:7

+  b=b+A(4,i);

+end

+disp(b)

+c=0

+disp('sum of fifth row elements=')

+for i=1:7

+  c=c+A(5,i);

+end

+disp(c)

+d=0;

+disp('sum of all frequencies=')

+for i=1:7

+  d=d+A(2,i);

+end

+disp(d)

+disp('mean=9+b/d=')

+9+b/d

+disp('standard deviation=(c/d)^0.5')

+(c/d)^0.5
\ No newline at end of file