Q6) For the A5/1 cipher, on average, how often do/does... I. X steps? ; II. X, Y, and Z all step? ; III. Exactly 2 of the registers step? ; IV. At most 1 ( 0 or 1 ) of the registers step? (Hint: think about the truth table of the majority function) Answer in decimals (not fractions). For example, 0.25 for 1/4,0.5 for 1/2, etc