Domestic Flight

Question

The length of time a domestic flight must wait between gate departure and takeoff taxi at BWI International Airport is approximately normally distributed with a mean of 22 minutes and a standard deviation of 7 minutes.

A) What is the probability that a plane must wait between 18 and 24 minutes before taxiing for takeoff after leaving the gate?

B)What is the probability a plane must wait between 22 and 30 minutes before taxiing for takeoff after leaving the gate ?

C) What is the probability a plane waits more than 12 minutes between gate departure and takeoff taxi?

D)What is the length of time such that only 5% of planes wait this long or longer before gate departure and taxiing to the runway?

Question

We all know that the shift from hierarchical leadership to one of more collegiality is slowly evolving. We have had discussions in this program about the importance of teacher leadership, and there will be more as we continue to study the many facets of school executive leadership. However, we also know that high-stakes testing is still at the forefront and can overshadow what we really want to see in our continuing efforts to nurture teacher leadership. There is a Reflective Exercise at the end of Chapter 1 that illustrates this concept very well.

• As a principal, how will you address your superintendent’s concerns as stated in this exercise?
• How will you work with the teachers in your building next year to improve teaching and learning?