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Three children A couple plans on having three children. Suppose that the probability of any given child being female is 0.5, and also suppose that the genders of each child are independent events.
a. Write out all outcomes in the sample space for the genders of the three children.
b. What should be the probability associated with each outcome?
Using the sample space constructed in part a, find the probability that the couple will have
c. two girls and one boy.
d. at least one child of each gender.
given that z is standard normal random variable compute the following probabilitiesa p-1lt-zlt-0b
Assume that probanility that dimond will be stolen is .005, and let x denote insurance company's profit. Compute insurance company's expected profit.
Can you please derive the mean and variance of a RV X, which has a Poisson distribution.
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A random check of 81 records of inmates from all federal prisons found the confidence interval for mean prison terms per prisoner to be 2.113 years to 2.287 years.
The meaning of the standard deviation, and any other relevant comments you would have if you were a member of the committee evaluating this study to determine if more money should be granted to these researchers.
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What are the assumptions underlying a normal distribution? What are the assumptions underlying a binomial distribution? Why do we want to assume that our sample data represent a population distribution?
Selection of a location for a prospective Wal-Mart creates many questions for executives. A suitable site would be one that has an adequate demand for Wal-Mart offerings, sufficient transportation resources, and an available labor force.
a large city claims that it provides free lunch to more than 30 of its elementary school students. a researcher selects
for each of the following hypothetical populations give a plausible sample of size 4a all distances that might result
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