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A True-False test was developed for a Risk Management class. A student, who didn't study, decided to randomly guess the answer on each question.
Let X be a random variable with uniform distribution over the interval (0,1) and let Y = X^2 (X squared). Find the probability density function of Y.
Assume that 12 percent of adults in this country have filed for bankruptcy at some point in their life. If an independent sample of 20 adults is selected
A rugby team of 13 consists of five backs, six forwards and two halves.
Eagle airlines' planes hold only 15 people. Past records indicate that 20% of the people making a reservation do not show up
Currently, an average of 7 residents of the viallage of Westport (population760) die each year (based on data from the U.S. National center for Health Stastics)
According to Census Bureau, deaths in the United States occur at a rate of 2,425,000 per year.
A box contains glass lenses used for traffic signals. Six are red, four are yellow, and seven are green. If two are chosen at random find the probability
If two events are dependent, then P(A/B) will equal _______________.
Busy Tellers. Prescott National Bank has six tellers available to serve customers. The number of tellers busy with customers at, say, 1:00 P.M. varies
On the Titanic, the passenger roster showed that there were 1692 men, 422 women, 64 boys, and 45 girls. Only 332 men and 29 boys survived
Let X1 and X2 have the joint pmf p(x1,x2) = (x1x2)/36 x1=1,2,3 and x2=1,2,3, zero elsewhere. Find first the joint pmf of Y1=X1X2 and Y2=X2
The National Collegiate association (NCAA) reported that the mean number of hours spent per week on coaching and recruiting by college football assistant
Suppose we turn over cards simultaneously from two well shuffled decks of ordinary playing cards. We say we obtain an exact match on a particular turn
A book of 450 pages contains 450 random misprint error(s). What is the probability of exactly 0 errors on a randomly selected page?
Plot the survival curve for males and for females. Briefly describe any differences or trends.
A bag contains 40 blue marbles, 40 red marbles, and 20 green marbles. 60 of the marbles are big. These marbles are selected at random without replacement
It's estimated that 57% of Americans live in households with 1 or 2 people, 32% live in households with 3 or 4 people and 11% live in households
Shaquille O'Neal is not recognized as good free throw shooter. Career average is 0.532 (53.2%). Suppose in a game Shaq takes 5 free throws.
One of the ways most Americans relieve stress is to reward themselves with sweets. According to one study, 46% admit to overeating sweet foods when stressed
Ace Machine Works estimates that the probability its lathe tool is properly adjusted is 0.8. When the lathe is properly adjusted, there is a 0.9 probability
A chef in a restaurant takes three rice dishes at random, without replacement, from a freezer. The freezer contains 4 fried rice dishes and 3 boiled rice dishes
In 1992, the Big 10 collegiate sports conference moved to have women compose at least 40% of its athletes within 5 years
If a person adopts a pet there is a 45% it'll be a cat and 55% it will be a dog (a local dog and cat adoption). If a cat is adopted there is 60% chance
A fire station is to be located along a road of length A, A<8. If fires will occur at points uniformly chosen of (0, A), where should the station