Reference no: EM132351227
Determine if the following are probability functions. If they are not, explain why.
1. P(x) = ; for x = 1, 2, 3, 4, 5, 6
2. P(x) = (-1)x; for x = 4, 5, 6, 7, 8, 9, 10
3. P(x) = ; for x = 1, 2, 3, 4
4. P(x) = 0.25; for x = 1, 2, 3, 4
5. A coin is tossed four times. You are counting the number of heads.