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--- tanszek:oktatas:techcomm:statistical_properties [2024/10/01 18:07] – [Frequency of Events] knehez
+++ tanszek:oktatas:techcomm:statistical_properties [2024/10/04 19:17] (current) – knehez
@@ Line 76: / Line 76: @@
 **Example 4:**:  Woman is expecting twins, what is the probability that one of the children will be a girl?
+Create sets containing all the possibilities.
+Try the following c code here: https://www.onlinegdb.com/online_c_compiler and examine the results.
+<sxh c>
+#include <stdio.h>
+#include <stdlib.h>
+#include <time.h>
+#define SIMULATIONS 1000
+// Function to simulate the birth of twins
+int simulate_twins() {
+    // Randomly determine the gender of the twins (0 = boy, 1 = girl)
+    int first_child = rand() % 2;
+    int second_child = rand() % 2;
+    // Return 1 if there is at least one girl, otherwise 0
+    return (first_child == 1 || second_child == 1);
+}
+int main() {
+    int at_least_one_girl = 0;
+    // Initialize the random number generator
+    srand(time(0));
+    // Simulate 1000 pairs of twins
+    for (int i = 0; i < SIMULATIONS; i++) {
+        if (simulate_twins()) {
+            at_least_one_girl++;
+        }
+    }
+    // Calculate and print the result
+    double probability = (double)at_least_one_girl / SIMULATIONS * 100;
+    printf("In %.2f%% of cases, there is at least one girl in the twin pair.\n", probability);
+    return 0;
+}
+</sxh>
 **Example 5:**: https://en.wikipedia.org/wiki/Monty_Hall_problem