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The personnel office at a large electronics firm regularly schedules job interviews and maintains records of the interviews
Consider babies born in the "normal" range of 37 - 43 weeks gestational age. Extensive data supports the assumption that for such babies born
A radio station that plays classical music has a "By Request" program each Saturday night. The percentage of requests for composers on a particular night
A newspaper article reported that people spend a mean of 6 hours per day watching TV, with a standard deviation of 1.9 hours
An investment will be worth $1,000, $2,000, or $5,000 at the end of the year. The probabilities of these values are .25, .60, and .15, respectively
An alcohol awareness task force at Big-Ten university sampled 20 students after the midterm to ask them whether they went bar hopping the weekend
If a person were to be hit by lightning, they have a 33 percent chance of being killed.
In previous tests, baseballs were dropped 24 feet onto a concrete surface, and they bounced an average of 92.84 inches
The following payoff table shows profits associated with a set of 3 alternative under 2 possible states of nature.
Assume that the readings on the thermometers are normally distributed with a mean of 0 degrees and a standard deviation of 1 degrees C.
Assume that mens weights are normally distributed with a population mean of 172 pounds and a population standard deviation of 29 pounds.
The lengths of pregnancies are normally distributed with a mean of 268 days and a standard deviation of 15 days. One classic use of the normal distribution
Use the Poisson Distribution the indicated probabilities in one year, there were 116 homicide deaths in Richmond VA.
Use the Poisson distribution to find the indicated probabilities. Currently, 11 babies are born in the village of West point, population of 760, each year.
The manager of a restaurant believes that waiters and waitresses who introduce themselves by telling customers their names will get larger tips
The restaurant in a large commercial building provides coffee for the building's occupants. The restaurateur has determined that the mean number of cups
A production process manufacturers alternators. On the average, 1% of the alternators will not perform properly when tested in the plant.
Comparing Scores. Three students take equivalent tests of a sense of humor and, after the laughter dies down, their scores are calculated.
One die is rolled. Find the probability of rolling a two given that an even number has been rolled.
f the probability of a snow storm producing over 20 inches of snow in Easton, PA in a given winter is .33, what is the probabilty that over a period of 10
In a (poorly run) widget factory, it is known that 25% of all products off the line will be defective. A random sample of 5 widgets is taken on a certain day
An army tank 2.2m wide needs to travel 19m to cross a minefield. The enemy that laid the minefield is known to have a standard practice of randomly placing
Consider a Poisson probability distribution with 2 as the average number of occurrences per time period.
Obtaining the Steady-State Distribution for a Transition Probability Density Function from a forward Fokker-Planck equation
The shape of data is another indicator. There are four shapes commonly observed: symmetric, positively skewed, negatively skewed, and bimodal.