Week04--newLecture1

# Prints the mean and standard deviation mean sum

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Unformatted text preview: y of data and * displays the difference between each value and the mean. */ #include <stdio.h> #include <math.h> #define MAX_ITEM 8 /* maximum number of items in list of data */ int main(void) { double x[MAX_ITEM], mean, st_dev, sum, sum_sqr; int i; /* /* /* /* /* data list */ mean (average) of the data */ standard deviation of the data sum of the data */ sum of the squares of the data */ */ /* Gets the data */ printf("Enter %d numbers separated by blanks\n> ", MAX_ITEM); for (i = 0; i < MAX_ITEM; ++i) scanf("%lf", &x[i]); conPnued… 18 /* Computes the sum and the sum of the squares of all data */ sum = 0; sum_sqr = 0; for (i = 0; i <= MAX_ITEM; ++i) { sum += x[i]; sum_sqr += x[i] * x[i]; } /* Computes and prints the mean and standard deviation */ mean = sum / MAX_ITEM; st_dev=sqrt((MAX_ITEM * sum_sqr - sum * sum)/ (MAX_ITEM*MAX_ITEM)); printf(&quo...
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## This document was uploaded on 03/10/2014 for the course ENGINEER 2sh4 at McMaster University.

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