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For each of the following stats, prove the below or give counter examples:
A sample of 2,000 licensed drivers revealed the following number of speeding violations.
Each vehicle in Mexico is either a truck, car or bicycle. Also each vehicle is red, green or yellow. We pick a vehicle at random
Two airlines offer conveniently scheduled flights to the airport nearest your corporate headquarters. Historically, flights have been schedules
A food distributor carries 64 varieties of salad dressing. Appleton Markets stocks 48 of these flavors. Beacon Stores carries 32 of them
In a city, 60% of the voters are in favor of building a new park. An interviewer intends to conduct a survey.
A consumer is contemplating the purchase of a new compact disc player. A consumer magazine reports data on the major brands
Let X1, X2,... be i.i.d. random variables with p.g.f Gx(s) and N be a r.v independent of X with p.g.f. Gn(s). Define S=X1+X2+...+XN. Find Var(S)
In a sample of 2400b people,170 have blonde hair.Two unrelated people are selected at random for the sample. Find the following probabilities:
A study determines that 60% of the voters in a town intend to vote for the incumbent mayor. If a sample of 8 people is selected, the approximate probability
Suppose you have 3 nickels, 2 dimes, and 6 quarters in your pocket. If you draw a coin randomly from your pocket, what is the probability
Suppose that an executive of a venture capital investment firm is trying to decide how to allocate his funds among three different projects
It is said that Napoleon assessed probabilities at the battle of waterloo in 1815. his hopes for victory depended on keeping the English and Prussian armies
A survey of 400 customers was completed in an attempt to measure the number of cups of coffee ordered during business hours
A citizen's action committee against nuclear power is comprised of 4 Democrats, 8 Republicans, and 3 Conservatives
The waiting room for jury selection has 40 women and 30 men to choose from. A jury of 12 is selected from these 60 people, what is the probability
Determine expected time and variance for each activity
Resimulate 15 days of barge unloading and compute the average number of barges delayed, average number of barges delayed, average number of nightly arrivals
Suppose a population is normally distributed with a mean of 200 and a standard deviation of 40. The probability that x> 190 is:
The combinations part of the binomial formula compute the:
The net profit of an investment is normally distributed with a mean of $10,000 and a standard deviation of $5,000.
A technician services mailing machines at companies in the Phoenix area. Depending on the type of malfunction, the service call can take 1,2, 3, or 4 hours.
To perform a certain type of blood analysis, lab technicians must perform two procedures. The first procedure requires either one or two separate steps
The following crosstabulation shows household income by educational level of the
Assume that we have two events, A and B, that are mutually exclusive. Assume further that we know P(A) = .30 and P(B) = .40