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1. An urn contains 12 white, 5 yellow, and 13 black marbles. A marble is chosen at random from the urn, and it is noted that it is not one of the black marbles. What is the sample space in view of this knowledge? What is the probability that it is yellow?
2. Two fair dice are rolled and face values are noted.
(a) What is the probability space?
(b) What is the probability that the sum of the numbers showing is 7?
(c) What is the probability that both dice show number 2?
3. In a city, 65% of people drink coffee, 50% drink tea, and 25% both. What is the probability that a person chosen at random will drink at least one of coffee or tea? Will drink neither?
a survey of 865 voters in one state reveals that 408 favor approval of an issue before the legislature. construct the
BMI in children is roughtl normally distributed with the mean of 24.5 and standard deviation of 6.2. BMI of 30 or more is considered obese. Determine proportion of children are obese?
Construct the confidence interval to find the estimated margin of error. Then find the sample mean and you are given the sample mean and sample standard deviation. Use this information to construct the 90% and 95% confidence interval for the popula..
Irrelevant costs associated with the decision to sign an act (make/own) as opposed to just distributing one (buy/lease)? Identify at least 2 relevant and 2 irrelevant costs.
The current speed limit is 65 mph. What is the proportion of vehicles less than or equal to the speed limit?
a certain segment of the sky contains z stars. each star is either a red giant with probability 13 or a white dwarf
Find the stationary points
a random sample of 625 sat scores has a mean of 1500. assume that sat scores have a population standard deviation of
Calculate (rounded to the nearest tenth) The correlation between IQ and Anxiety r =??
Given that this sample is extremely large, can the responses be considered to be representative of the population of the United States? Explain.
In our example of research on lipstick, where E = $2 and S = $29, what sample size would we require if we desired a 99 percent confidence level? What about if we keep the 95 percent confidence level, but decide that our acceptable error is $4?
Solve linear program graphically
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