(Solved): Calculate the cdf \( F(x) \). Graph the cdf \( F(x) \) Use the graph to calculate the probabilitie ...

Calculate the cdf \( F(x) \). Graph the cdf \( F(x) \) Use the graph to calculate the probabilities of the events given below. (a) \{at most three lines are in use \( \} \) (b) \( \{ \) fewer than three lines are in use \( \} \) (c) \{at least three lines are in use\} (d) \{between two and five lines, inclusive, are in use\}