Laila guesses on all 20 questions of a multiple-choice test. Each question has 4 answer choices. What is the probability of a success and a failure for this experiment?
Answer
A
cap p times success is equal to 1 fourth ; cap p times failure is equal to 1 half
B
cap p times success is equal to 3 fourths ; cap p times failure is equal to 1 fourth
C
cap p times success is equal to 1 ; cap p times failure is equal to 0
D
cap p times success is equal to 1 fourth ; cap p times failure is equal to 3 fourths