If is uniformly distributed on and given that is uniformly...
If the joint density of and is
find the variance of .
Let and be independent continuous uniform random variables each on...
A box contains 10 poorly stored lightbulbs, 4 of which are defective....
If and find .
The density of is proportional to for and is 0 otherwise. If the...
The average heigh of adult Americans is 176 cm, with a standard...
Suppose that the moment generating function of  is given...
What is the smallest possible value of  if  and ?
The number of hurricanes per month is approximately Poisson...
Suppose that  are i.i.d. uniform random variables on the...
Suppose that  and  are discrete random variables...
An insurance company with 500,000 customers observes that the...
Suppose that and are jointly normal random variables with and ....
The numbers of commercials  during the first 200 miles of the...
Losses  for a certain type of insurance have a lognormal...
The joint mgf of  is given by
.
Find .
Suppose  is a normal random variable with  and...
Find the mode of a Poisson random variable with mean 1.5.
A student who is taking a 30-question multiple choice test knows the...
The cdf of a random variable  satisfies...
An actuary estimates that claims from a randomly chosen customer this...
If  and  what is the maximum possible value of ?
If   and  find .
The number of chips per cookie in a batch of chocolate chip cookies...
The density of  is proportional to  for  and is 0...
If  is a Poisson random variable with  then what is the...
When I am sick, I like to count the buses that pass my house. I have...
In Saint Tropez the probability that it rains on a given day is 10%....
Suppose that and are uniformly distributed on the set and and let...
Let be a random variable with density
.
What is the median of ?
An insurance policy reimburses a loss up to a benefit limit of 20. If...
The number of chocolate chips in a jumbo chocolate chip cookie at the...
If is an exponential random variable with mean and is an...
75% of the customers of ACME Mutual Insurance have auto insurance, and...
The probability that Rafael Nadal wins a tennis match in straight sets...
Insurance losses  in a given year have a lognormal...
Two fair six-sided dice are rolled. If the sum of the rolls is 10,...
An urn contains 6 balls: 1 red, 2 blue, and 3 green. If I draw 2 balls...
The cdf of the number of hours it takes a consultant to complete a...
At a small college, the number of students taking calculus is 320....
Let  be the outcome from rolling a fair six-sided die and...
Suppose that is an exponential random variable with mean 2 and . Find...
The computer network for a company has two servers. If the failure...
Suppose that  and  are independent Poisson random...
In a shooting contest, a contestant has a probability of .7 of hitting...
An insurance company sells exactly 3 types of insurance: fire, auto,...
Light bulbs for my living room lamp appear to have a random lifetime...
The joint moment generating function for  and  is ...
In a blind tasting of wines from Bordeaux and Napa valley, a wine...
Four red dice and six blue dice are rolled. Assuming that all ten dice...
The moment generating function of  is . Find .
The probability that I arrive at work on time on a given day is 25%....
If the moment generating function of  is  what is the...
The size of a loss due to a hurricane has cdf...
The joint density...
In a small, liberal arts college, 40% of the students have taken...
I have two urns, one which contains 3 blue balls and 7 red balls, and...
An urn contains 4 red balls and 4 blue balls. A ball is randomly drawn...
Suppose that and are jointly normal with and that the correlation...
Bob is always early to his company's weekly 8am meeting, arriving...
Suppose that is a Poisson random variable with mean 2.5 and is a...
An insurance company sells 5,000 policies, each with a premium of...
Suppose the joint density...
An insurance company pays $10,000 for the first loss, $7,500 for the...
If   and  are i.i.d. exponential random variables with...
Let  be a randomly chosen integer with . What is the...
The cost of damage in a fire has a density given by for . If the...
A life insurance company classifies its customers as being either high...
Suppose that  are random variables with  and ....
An insurance company feels that the damage that its customers receive...
The joint cdf of  is given by
.
for . Find .
Let  be the number of rolls of a fair die before getting a 6...
Suppose that and are uniformly distributed on the diamond . Find .
The probability that a driver will get into an accident within 2 years...
The moment generating function of is given by
.
Find .
Suppose  and  are bivariate random variables...
 and  are identically distributed independent random...
For  the joint density of  is given by . Find .
A company pays an annual insurance premium of $1000 at the beginning...
A fair 6-sided die is rolled 1,000 times. Using a normal approximation...
 and  have joint density given by 
Find .
A bag contains three dice, two of which are somewhat unusual: die A is...
For a random variable  let  be given by ...
An actuary for an insurance company models annual claims with a...
The cdf of is given by
.
Find .
If  is an exponential random variable with mean 2 and ...
The joint density of  and  is
Find .
Suppose that and are independent random variables with common...
Suppose that I roll two independent dice one red and one blue....
A company insures 2 machines for maintenance. In a given year each...
If I roll 6 different fair six-sided dice, what is the probability...
The time in years until the next time a piece of space debris with...
The joint density of  and  is...
An insurance company categorizes its customers as low risk, medium...