Given that a certain medical condition is found in 1 out of 1000 persons. For an...
Given that a certain medical condition is found in 1 out of 1000
persons. For an island with a population of 500, the distribution
?~?(500,0.001) could be used to describe the proportion of
population that is infected with the condition.
(d) Assuming the above Binomial proportion is applicable for
another island with a population of 5000, and by using an
appropriate approximation, find:
(i) the expected number of persons with the condition
(ii) the probability that there will be more than 5 persons
infected with the condition
(e) The random variable ? has a binomial distribution ?~?(11,?). Given that ?(? = 8) = ?(? = 7). Show that ? = 2/3 .
Homework Answers
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Given that a certain medical condition is found in 1 out of 1000
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Suppose voters from a simple random sample of 500 (N > 1,000,000) are interviewed and asked...
Suppose voters from a simple random sample of 500 (N
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for the Statistics Party. You want to know the probability,
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than 40% of a random sample of 500 people will vote for the
Statistics Party. Which of these shows the three ways you could
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A.
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3. Let C be the event that a patient suffers from a certain condition, and let T denote a positive result from a lab te...
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Suppose voters from a simple random sample of 500 (N
> 1,000,000) are interviewed and asked which presidential
candidate they're going to vote for. Of these, 35% say they'll vote
for the Statistics Party. You want to know the probability,
assuming this proportion is correct for the population, that more
than 40% of a random sample of 500 people will vote for the
Statistics Party. Which of these shows the three ways you could
find your answer?
A.
A-Using the...
Find the probability that a z-score randomly selected from the normal distribution meets the given condition. The Z-score is between -1.5 and 2.5. In the following problem, check that it is appropriate to use the normal approximation to the binomial. Then use the normal distribution to estimate the requested probabilities More than a decade ago, high levels of lead in the blood put 80% of children at risk. A concerted effort was made to remove lead from the environment. Now,...
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