the following is a probability distribution of a weighted die. 10 9 8 weight 7 6 5 4 3 2 1 1 2 3 4 5 6 die number a. (5 pts) what is the probability of rolling a 1, 2, 3, 4, or 5? b. (5 pts) what is the standard deviation of this distribution? c. (5 pts) what has better odds: getting a heads on flipping a coin or rolling a 2 or 3 with two of these die?