Solution-What is probability that a call will last less

The durations of calls to a radio talk show are known to be exponentially distributed with a mean of 3 minutes.

a. What is the probability that a call will last less than 2 minutes?

b. What is the probability that a call will last longer than 4 minutes?

c. Given that a call has already lasted 4 minutes, what is the probability that it will last at least another 4 minutes?

d. Given that a call has already lasted 4 minutes, what is the expected remaining time until it ends?

Poisson distribution with a mean of 4 per hour : The number of phone calls that arrive at a secretary's desk has a Poisson distribution with a mean of 4 per hour.

What amount appear in a consolidated balance sheet : Using the acquisition method, what amount of goodwill should appear in a consolidated balance sheet prepared immediately after the combination

Poisson distribution with a mean of 3 mistakes : The number of typing mistakes that Ann makes on a given page has a Poisson distribution with a mean of 3 mistakes.

Define the elements from the implementation follow-up phase : List and briefly define the elements from the implementation follow-up phase of IT security management.

What is probability that a call will last less than 2 min : The durations of calls to a radio talk show are known to be exponentially distributed with a mean of 3 minutes.

What are the direct and indirect threats posed by fire : What are the principal concerns with respect to inappropriate temperature and humidity? What are the direct and indirect threats posed by fire?

What is the probability that the battery life exceeds : a. What is the probability that the battery life exceeds 2 weeks?

Given that there is currently no student in the lounge : a. Given that there is currently no student in the lounge, what is the expected waiting time until the VCR is turned on?

List and describe some measures for dealing with fire : List and describe some measures for dealing with inappropriate temperature and humidity. List and describe some measures for dealing with fire.