URGENT!!!!

Comanication 1. Imagine that the first traffic light you encounter on your way to school each morning has a 60 second cycle in which it is green for 20 of those seconds. What is the probability that you will get a green light on the next five morning trips to school? Explain why this situation can be modelled by a binomial distribution experiment. [2] 2. Is it possible to use a normal approximation for a binomial distribution with 19 trials and a probability of success of 0.75? Explain. N [2] 0.4 3. The graph to the right shows the probabilities of a variable. N, for the values N = 1 to N = 4. Is this the graph of a valid probability distribution? Explain. 0.3 0.2 m - D 1 Pmlzru [Z] Thinking 1. Our school has concluded that 6% of people do not show up for their plays. To avoid having empty seats. they sometimes overbook. The auditorium holds 204 people. What is the probability that some parents will not get a seat if 215 tickets are sold? [5]