No explanation needed, final answers only please

6- What is the probability of answering at least 1 question wrong, out of a total of 20 questions in a multiple choice test with 4 choices for each question where only one choice is the correct answer and you take a guess at each question? A) 20(1/4)(3/4) 19 B) 1-(1/4) 20 C) 1/2 D) O E) Other7- Two identical urns contain balls. One of the urns has 6 red balls and 3 blue balls. The other urn has 5 red balls and 8 blue balls. An urn is chosen at random and a ball is drawn at random from this urn. If the ball turns out to be red, what is the probability that this is the urn with 6 red balls? A) 26/41 B) 2/3 C) 13/41 D) 15/41 E) Other