title: unbalanced dataset, anomalies have same distribution as normal data
body: <p>I worked with a dataset which contains 2 classes (95%, 5%). </p>
  
  <p>And the features of these 2 classes have almost the same distribution. </p>
  
  <p>Question is: How can I classify these 2 classes and explain which principal the model uses to classify the test set? </p>
  
  <p><img src="https://i.stack.imgur.com/SIJHc.png" alt="enter image description here"></p>