Download Course 161/2S3, Tutorial Sheet 3

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Transcript
Course 161/2S3, Tutorial Sheet 3
• Write a C program which uses while loops to calculate the mean and
variance of N numbers. Modify the program so that it uses for loops
rather than while loops.
Note
The mean, x̄ of the numbers xi is
x̄ =
−1
1 NX
xi
N i=0
The standard deviation σ of the numbers is.
σ=
v
u
u
t
−1
1 NX
(xi − x̄)2
N i=0
!
• Write a C program which calculates the sum of the absolute values of
N numbers. Your program should read in N numbers first.
1