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60 million households with personal computers were distributed as shown here with regard to geographic location and access to the internet
If 10% of all disk drives produced on an assembly line are defective, what is the probability that there will be exactly one defect in a random sample
Thirty per cent of all patients undergoing a particular diagnostic procedure require a sedative. In a random sample of 10 patients undergoing the procedure
Random Variables: Classification- Which of the following are continuous variables and which are discrete?
The industry standards suggest that 10% of new vehicles require warranty service within the first year.
Find the value of x such that P (t10x › X) = 0.75, where t10 has a t distribution with 10 degrees of freedom.
The amount of time spent by North American adults watching television per day is normally distributed with a mean of 6 hours and a standard deviation of 1.5
Suppose that a popular hotel for vacationers in Orlando, Florida, has a total of 300 identical rooms. Like many major airline companies, this hotel has adopted
The speed with which utility companies can resolve problems is very important. GTC, the Georgetown Telephone Company, reports they can resolve customer problems
Bad gums may mean a bad heart. Researchers discovered that 85% of people who had suffered a heart attack during a given calendar year also had periodontal
A process follows the binomial distribution with n = 8 and p = .3. Find P(x > 6)
A loaf of bread is normally distributed with a mean of 22 ounces and a standard deviation of 0.5 ounces. What is the probability that a loaf is larger than 21
The probability is 1 in 4,000,000 that has a single auto trip in the United States will result in a fatality. Over a lifetime, an average U.S. driver takes 50,0
In 2000, the average age of students at UTC was 22 with a standard deviation of 3.96. In 2001, the average age was 24 with a standard deviation of 4.08.
The Bijou Theater in Hermosa Beach, California, shows vintage movies. Customers arrive at the theater line at the rate of 100 per hour.
An installation technician for a specialized communication system is dispatched to a city only when three or more orders have been placed.
A player of a video game is confronted with a series of opponents and has an 80% probability of defeating each one.
It has been reported that the average US office worker receives 14 fax messages per day.
For a random variable that is normally distributed, with u = 200 and o = 20, determine the probability that a simple random sample of 4 items
A continuous random variable, x, is normally distributed with a mean of $1000 and a standard deviation of $100. Convert each of the following x values
The following data represent x = the total number of business and y = the number of business failures in mountain states over a 1-year period.
A regional manager visits local fast-food franchises and evaluates the speed of the service. If the manager receives her meal within 45 seconds
Assume x is normally distributed with mean u=15 and standard deviation 0=3. Use the approximate areas beneath the normal curve
Employees in a large manufacturing plant worked an average of 62.0 hours of overtime last year, with a standard deviation of 15.0 hours.
A marketing firm wants to target people who eat breakfast by sending out a new product. According to recent statistics three in four people eat breakfast