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A blood test indicates the presence of a particular disease 98% of the time when the disease is actually present. The same test indicates the presence of the disease 0.5% of the time when the disease is not present. One percent of the population actually has the disease. Calculate the probability that a person has the disease given that the test indicates the presence of the disease.
discrimination the u.s. supreme court considered a case involving the exam for firefighter lieutenant in the city of
you are sending out 60 invitations to a party.each person can bring a guest if they wish. suppose its equal probable
What is the probability of a fatal accident over a lifetime? Explain your reasoning carefully. Hint: Assume independent events. Why might the assumption of independence be violated?
With probabilities 0.8, 0.1, 0.08 and 0.02 respectively. A particular company offers a $500 deductible policy. If the company wishes its expected profit to be $100, what premium should it charge?
The 2009 National Assessment of Educational Progress (NAEP) gave a mathematics test to a random sample of eighth-graders in Texas. The mean score was 287 out of 500. To give a confidence interval for the mean score of all Texas eighth-graders, you..
A random sample of 225 SAT scores has a mean of 1522. Assume that SAT scores have a population standard deviation of 300. construct a 95% confidence interval estimate of the mean SAT scores.
The number of degrees of freedom for the appropriate chi-square distribution in a test of independence is:
from a random sample of 70 high school seniors the mean and standard deviation of the verbal scores in the sat are
A arbitrary sample of 8 students is selected. Illucidate the probability that among the students in the sample at least 7 are female.
a company provides component parts for an engine. parts specifications suggest that 95 of items meet specifications.
What is the likelihood that none of the selected flights arrived within fifteen minutes of scheduled time?
Evaluate the mean wait time and throughput rate
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