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At the U.S. Open Tennis Championship a statistician keeps track of every serve that a player hits during the tournament. The statistician reported that the mean serve speed of a particular player was 105 miles per hour (mph) and the standard deviation of the serve speeds was 9 mph. If nothing is known about the shape of the distribution, give an interval that will contain the speeds of at least eight-ninths of the player's serves.
What are its classes? What are their periods? Are they transient or recurrent? Compute the transition probabilities Pi,j .
Determine the probability that only 1 of the 5 processors is defective. Determine the probability that 3 of the 5 processors are not defective. Determine the probability that the technician will have enough processors to replace 3 defective processo..
What proportion of the class scored below 50 and above 70? Use Chebyshevs Therom.
Say a fast-food franchiser is considering building a restaurant in a local mall. According to franchise headquarters, a site is acceptable only if the number of pedestrians passing the location averages more than 100 per hour.
If the frequency of the trait has not changed, what's the probability he finds the trait in none of the 12 frogs?- at least 2 frogs?
A diagnostic kit (for measuring a particular protein level in blood) can be used to test 16 blood samples. To check for kit-to-kit consistency the manu facturer tested the blood from 16 patients with two different kits. The data are recorded in..
a researcher wonders if there is a difference in perfectionism across individuals who receive different amount of
What substances do we use as energy for activists such as sports and exercise? What substances do we use to get that energy?
A supermarket sells one particular item in its store on a regular basis. It currently has 750 units of this item in stock and no deliveries are expected until.
What is the preferable sample size in process control involving the measurement of variables?
A teacher gives a pre and post test to her students, she wants to know if there is a difference in the number of points students earned on their pretest and post test.
What percentage of success would you expect for these professional golfers if the putting distance was 10 feet?- Explain what the slope of 3.95 means in terms of how success changes with distance.
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