Create mean-variance.c

mean-variance.c

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+#include <stdio.h>
+#include <math.h>
+#define MAXSIZE 10
+
+void main()
+{
+    float x[MAXSIZE];
+    int  i, n;
+    float average, variance, std_deviation, sum = 0, sum1 = 0;
+
+    printf("Enter the value of N \n");
+    scanf("%d", &n);
+    printf("Enter %d real numbers \n", n);
+    for (i = 0; i < n; i++)
+    {
+        scanf("%f", &x[i]);
+    }
+
+    for (i = 0; i < n; i++)
+    {
+        sum = sum + x[i];
+    }
+    average = sum / (float)n;
+
+    for (i = 0; i < n; i++)
+    {
+        sum1 = sum1 + pow((x[i] - average), 2);
+    }
+    variance = sum1 / (float)n;
+    std_deviation = sqrt(variance);
+    printf("Average of all elements = %.2f\n", average);
+    printf("variance of all elements = %.2f\n", variance);
+    printf("Standard deviation = %.2f\n", std_deviation);
+}