Added test for stats.cpp

Author: Anonymous5164

test/stats.cpp

@@ -0,0 +1,42 @@
+#include <iostream>
+#include "../stats.cpp" 
+using namespace std;
+
+
+int main() {
+    
+    float arr[] = {1.2, 2.5, 3.1, 4.8, 5.3};
+    int len = sizeof(arr) / sizeof(arr[0]);
+
+    // Test arrayMean
+    float mean = mlb::arrayMean(arr, len);
+    cout << "Mean: " << mean << endl;
+
+    // Test arrayMedian
+    float median = mlb::arrayMedian(arr, len);
+    cout << "Median: " << median << endl;
+
+    // Test arrayMode
+    float mode = mlb::arrayMode(arr, len);
+    cout << "Mode: " << mode << endl;
+
+    // Test normalPDF
+    float x = 2.0;
+    float pdf = mlb::normalPDF(x, 0.0, 1.0);
+    cout << "Normal PDF at x=" << x << ": " << pdf << endl;
+
+    // Test exponentialPDF
+    float lambda = 0.5;
+    x = 1.0;
+    float exp_pdf = mlb::exponentialPDF(x, lambda);
+    cout << "Exponential PDF at x=" << x << ": " << exp_pdf << endl;
+
+    // Test binomialPMF
+    int k = 2;
+    int n = 5;
+    float p = 0.3;
+    float binomial_pmf = mlb::binomialPMF(k, n, p);
+    cout << "Binomial PMF at k=" << k << ", n=" << n << ", p=" << p << ": " << binomial_pmf << endl;
+
+    return 0;
+}