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Calculate the variance and the standard deviation of this probability distribution?
Calculate the expected rate of return?
suppose each of three persons tosses a coin. if the outcome of one of the tosses differs from the other outcomes then
A health care professional wishes to estimate the birth weight of infants. How large a sample must she select if she desires to be 90% confident that the true mean is within 6 ounces of the sample mean?
Approval rating of 48% within a margin of error of 3%. Construct a confidence interval for the population proportion (p) of adults who approve of the candidate.
Calculate the among groups degrees of freedom, determine if the mean ratios for the four neighborhoods are the same?
The Kirschner Company has a contract to produce garden hoses for a customer. Kirschner has 5 different machines that can produce this kind of hose. Write the constraint that indicates they have to use at least three of the five machines in their p..
Describe 5 data collection techniques in your own words. Explain why the four demographic questions you included in your survey are important and or are of interest to the study.
If it rains in Greenville on Monday, there is a 80% chance that it will rain in NC that day. What is the probability it will rain in at least one of the above states.
The following table is partial probability distribution for the MRA Company's projected profits ( x= profit in $1000s ) for the first year of operation x f(x) -100 .10 0 .20
suppose that a random sample of size 25 is to be selected from a population with mean 41 and standard deviation 9. what
suppose a sample of 19 scores has a mean of 67.43. two additional scores are added to the sample with values of 64.4
The number of viewers of American Idol has a mean of 33 million with a standard deviation of 10 million. What is the probability that next week's show will: Have between 37 and 44 million viewers?
The third will be made an offer only if the committee should reject both the first and the second. How many possible ordered choices of three out of six candidates are there?
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