The following table presents the probability distribution of the number of vacations X taken last year for a randomly chosen family. x (# of vacations) 0 1 2 3 4 Frequency 10 40 30 15 5 1. What is the probability that a family had exactly three vacations? 2. What is the probability that a family had at least three vacations? 3. What is the mean of the probability distribution? 4. What is the variance of the probability distribution?

Classify the statement as an example of classical probability, empirical probability, or subjective probability. The probability that a train will be in an accident on a specific route is 1%.

What is the output of the following program? def mystery(s):    if len(s)

What is the most common cause of cardiopulmonary arrest in the trauma patient?

Medical Director requests application of a second tourniquet. Which of the following is the appropriate site?

What is the most likely cause of unequal pupils in a patient whose mental status is altered due to a head injury?

Which of the following should always be performed prior to transport?

Which of the following is true regarding pulmonary contusion?

When performing the ITLS Primary Survey, the team leader may minimize errors by:

A 4-year-old female is unconscious after falling off a bicycle. Which of the following is the best method to open the airway?