Get player script methods&variables from another script in another Scene

Hello i got a problem. I want to display player score that is in a scene. And i want to acces that script from antoher script in another scene just to display the score.

This is the class i want to inherit from:

public float scoreCalculation(){

         score = 1;
         random = random + Random.Range(min,max);
         score =+ random + addScore;
         return score;
     }
 
     public float getScore(){
         float pScore = score;
         return pScore;
     }

And this is the class that i want to display the score in another scene.

 public class guiDead : MonoBehaviour {
 
     public GUIStyle style,style2;
     public player score;
     private float displayScore;
 
     void start(){
 
         score = GetComponentInParent<player>();
         displayScore = score.getScore();
 
     }
 
     void OnGUI(){
 
         GUI.Box(new Rect(200,200,200,200),"Sorry you died \n \n Your Score: " + displayScore,style);
 
         if(GUI.Button(new Rect(200,450,100,100),"Retry",style2)){
 
             Application.LoadLevel(1);
 
         }
 
 
 
     }
 
 }

Can you guys please help me?