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Suppose the probability that a major earthquake occurs on a given day in Fresno, California, is 1 in 10,000.
a. In the next 1,000 days, what is the expected number of major earthquakes in Fresno?
b. If the occurrence of major earthquakes can be modeled by the Poisson distribution, calculate the probability that there will be at least one major earthquake in Fresno during the next 1,000 days.
From a town of 25 Republicans and 25 Democrats, pollsters A and B each sampled ten residents at random without replacement. Find the probability that the two polls contained exactly the same number of Republicans.
Statistics means never having to say you"re certain." What defines the cohort? All patients from a particular healthcare plan?
suppose that in elections a candidate says that hell get 60 of the votes in the election. the total population is 300
The least squares simple linear regression line minimizes the sum of the vertical deviations between the line and the data points.
P-value for test statistic is .085, determine the minimum level of significance needed to reject null hypothesis?
Normal population having a standard deviation of 0.04, what is the probability that the mean of a random sample of size 25 will be "off" by at most 0.02?
Medication, 47% take cholesterol-lowering medication, and 12% take both medications. What is the probability that a senior citizen takes either blood pressure-lowering or cholesterol-lowering medication?
Draw a decision tree of this situation. Draw an influence diagram of the situation. Before deciding, the decision maker considers listening to the weather forecast on the radio. Draw an influence diagram that takes into account the weather forecast.
Either direction from what would have been obtained by interviewing all voters in the United States. Find the sample size suggested by this statement.
Stanford Binet IQ scores have a mean of 100 and a standard deviation of 15. Albert Einstein reportedly had an IQ of 160. Convert Einstein's IQ score to a z score.
What is the probability the number of fatal crashes will be between 1000 and 2000 for a year?
Assume that the mean SAT score in Mathematics for 11th graders across the nation is 500, and that the standard deviation is 100 points. Find the probability that the mean SAT score for a randomly selected group of 150 11th graders is between 475 a..
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