STATISTICS HELP PLEASE, EASY 10 POINTS!!!!?

You have a 20% chance of guessing the right answer, so you should get 6 correct. 6 correct answers multiplied by 5 points is 30 points for correct answers. You also missed the other 24 questions you guessed on. so, that's 30 points for correct answers minus 24 points for wrong answers, netting a total of 6 points.