Question i Which of the following are valid cumulative distribution functions? 0 for x 2 0 for a

Question Which of the following are valid cumulative distribution functions? 11. F (c) 111. F (c) 1 1 1 2 c2 2c + 1 for c < 1 for 1 < c < 2 for c > 2 for c < 0 for 0 c < 1 + for c 1 + for c < 2 for c = 2 for 2 < c < 1 + 2 for c 1 + 2