Probability function f(x) = 1/20, where 0 what is the probability P(x=12)? what is the probability P

Probability function f(x) = 1/20, where 0

  1. what is the probability P(x=12)?
  2. what is the probability P(x
  3. True or False: P(x>3Ix>2) = P(x>3)?