From 6914219aa53200390541f91608eb6b315b333826 Mon Sep 17 00:00:00 2001
From: ajay6028 <71450883+ajay6028@users.noreply.github.com>
Date: Fri, 22 Oct 2021 20:52:14 +0530
Subject: [PATCH] Create mean-variance.c

Program to find mean, variance and standard deviation of real numbers.
---
 mean-variance.c | 34 ++++++++++++++++++++++++++++++++++
 1 file changed, 34 insertions(+)
 create mode 100644 mean-variance.c

diff --git a/mean-variance.c b/mean-variance.c
new file mode 100644
index 0000000..e389965
--- /dev/null
+++ b/mean-variance.c
@@ -0,0 +1,34 @@
+#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);
+}