Elliot is taking a four question multiple choice test. Each question has four possible answers. He is going to completely guess on each question and he will get 5 points for every correct answer and lose 2 points for every incorrect answer.How many points can he expect to earn on the test?

Respuesta :

6 Points is my guess, there is a 50, 50 chance that he will get it, 50% of 4 is 2, two times 5 is 10, - (2*2) 4= 6 points