kcceff7800 kcceff7800 03-01-2024 Mathematics contestada The random variable N has PMF PN(n) = {ᶜ⁽¹/²⁾ⁿ₀ n = 0, 1, 2, otherwise. (a) What is the value of the constant c? (b) What is P[N ≤ 1]?