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1. An urn always contains 2 balls. Ball colors are red and blue. At each stage a ball is randomly chosen and then replaced by a new ball, which with probability 0.8 is the same color, and with probability 0.2 is the opposite color, as the ball it replaces. If initially both balls are red, ?nd the probability that the ?fth ball selected is red.
2. Suppose that balls are successively distributed among 8 urns, with each ball being equally likely to be put in any of these urns. What is the probability that there will be exactly 3 nonempty urns after 9 balls have been distributed?
a toll bridge charges 1.00 for passenger cars and 2.50 for other vehicles. suppose that during daytime hours 60 of all
if the probability is 0.1 that a person will make a mistake on his or her state income tax return find the probability
A manufacturer of "low precision" 10 mm diameter ball bearings periodically takes samples and measures them to con?rm that the manu- facturing process is still on target. A random sample of 20 ball bearings resulted in diameter measurements with a..
Round the intermediate values to 2 decimal places. Round your answer to 2 decimal places, the tolerance is +/-0.05. Type of music preferred is independent or not independent of region of the country?
Suppose that four American adults are asked if they ate at table-service restaurants last week. What is the probability that all of them say yes?
What is a discrete random variable and how does it differ from a continuous random variable? Give examples.
an accountant for a large department store would like to develop a model to predict the amount of time it takes to
type your question here the five summery for production order size in thousends pounds for steel tubing is min16.5 q132
Suppose that you are interested in determining the relation between the students average SAT scores [x] and their freshman GPA [y].
a dean of a business school wants to know if the proportion of graduates who use statistical inference within the first
You happen to know that the average GPA for the 5,000 sophomores at USC is 2.8 with a population standard deviation of .25. Amazingly, the GPAs are normally distributed. If you take a randomly chosen sophomore, what is the probability that her gpa..
In playing the Lemonade Stand Game, Bob decreased his price per cup by two cents, from $.27 per cup to $.25 per cup. At the .05 level of significance, did net revenue increase?
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