Posted by **hsuan** on Saturday, May 4, 2013 at 5:52pm.

It is known that the number of people who enter a bank during a time interval of

t minutes is a Poisson random variable with the parameter t. The bank opens at 8am and you

arrive at the bank at uniformly random time between 8am and 9am. Let X be the number of

people who entered the bank before you. Find the expectation and the variance of X.

## Answer this Question

## Related Questions

- math - It is known that the number of people who enter a bank during a time ...
- math - It is known that the number of people who enter a bank during a time ...
- math - A bank wishing to determine the average amount of time a customer must ...
- Math - Bank XYZ is hiring, and they would like to determine the number of ...
- Math - Statistics - Suppose that the mean number of customers who arrive at the ...
- Pre-Calculus - . Margaret is planning to invest up to $22,000 in certificates ...
- MATHS - This bank machine has four rows of buttons 1 2 3 4 5 6 7 8 9 0 Sam has a...
- statistics - The U.S. Geological Survey compiled historical data about Old ...
- probability - A fair coin is flipped independently until the first Heads is ...
- Prob ans stat - Let x be a random variable that represents the length of time it...

More Related Questions