Random Position?

How can i make my player to move at random x,z position when i clic my mouse button
void OnMouseDown () {
myRB.velocity = new Vector2 (myRB.velocity.x ,kickHight);

}

transform.Translate(new Vector3(Random.Range(-10.0F, 10.0F), 0, Random.Range(-10.0F, 10.0F));
This will move transform to direction of a vector3 that each of it’s components varying randomly between -10 and +10.

Edit: I saw that you asked for x and z only. So edited y to 0.

Edit2: As you added the info that you want to do this with physics, then just replace the code above with this:

GetComponent<Rigidbody>().AddForce(new Vector3(Random.Range(-10.0F, 10.0F), 0, Random.Range(-10.0F, 10.0F));

You may edit the random range whatever you want.