Posted by **Johnny** on Thursday, July 13, 2006 at 7:20pm.

Would really urgently appreciate answers to these questions. Thanks.

3. Suppose that two lotteries each have n possible numbers and the same payoff.

In terms of expected gain, is it better to buy two tickets from one of the lotteries

or one from each?

4. A random square has a side length that is a uniform[0,1] random variable. Find

the expected area of the square.

5. If n men throw their hats into a pile and each man takes a hat at random, what

is the expected number of matches? (Hint: Express the number of matches as

a sum of n Bernoulli random variables.)

Well Johnny, we (at least I) don't simply respond to requests for answers. The objective here is not just "getting the answer", but seeing that you "get the method" behind it too.

What have you tried? Where are you stuck right now?

## Answer this Question

## Related Questions

Math - Game Theory - Suppose that a decision-maker's preferences can be ...

stats: need help please - 4.34 Keno is a favorite game in casinos, and similar ...

statistics - At a church bazzar they have a game of chance that consists of ...

stats - a student randomly guesses at five multiple-choice questions, each ...

Please Help - PROBABILITY - At a fair run by a local charity organization, it ...

Math - Suppose you play a game in which two fair standard dice are rolled. If ...

probability - Two six-sided dice each have the numbers 1 through 6 on their ...

college stats - Again sorry for all the questions. please help, I am not good at...

finding numbers - The sum of two positive numbers is 20. Find the numbers if the...

Math - Fred, Burt, Conrad, Otto, and Hugh run a race. All the runners can be ...