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Another version of Bertrand's paradox. Let a chord be drawn at random in a given circle. What is the probability that the length of the chord will be greater than the side of the equilateral triangle inscribed in that circle?
R is reported to be 0.28. What percent of the variation in energy-drink consumption is explained by the model? Is this a highly predictive model? Explain.
Carefully sketch a graph that includes the distribution of X if μ = 1250 and if μ = 1330. Shade in the areas that correspond to the probability of a type I error (0.01) and to the probability of a type II error found in part (b).
Sampling shoppers A marketing consultant observes 50 consecutive shoppers at a supermarket, recording how much each shopper spends in the store.
Suppose that P(X = 1) = P(X = -1) = 1/2, that Y ? U(-1, 1) and that X and Y are independent.
Zombies eat, on average, 5 brains per day. Assume the actual number of brains eaten per day follows the normal distribution with a standard deviation of 0.29 brains. What is the probability that a zombie will eat exactly 3.2 brains tomorrow?
is there a relationship between gender and the type of car driven? a random sample of 1000 adults was obtained. the
Research shows that the life time of Everlast automobile tires is normally distributed with a mean value of 70,000 miles and a standard deviation of 7,000 miles. What is the probability of having a tire that lasts more than 80,000 miles?
results of a statistical survey and analyze processed datadirections this is your end-of course assignment to assess
What are the possible values of the stock after two days, and what is the probability for each value? What is the probability that the stock is worth more.
Suppose the table summarizes the opinions of various groups on the issue of offshore drilling. Use this table to calculate the empirical probabilities.
Examine the table. What is the overall pattern you see, and are there any departures from that pattern? Calculate appropriate percentages. Why is it useful to do this
In retrospect, how might the United States under the Truman administration have handled the situation differently? How would you characterize the current situation and how might our relationship with the largest survivor of the breakup of the Sov..
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