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Oxnard Petro Ltd. is buying hurricane insurance for its off-coast oil drilling platform. During the next five years, the probability of total loss of only the above-water superstructure ($240 million) is .40, the probability of total loss of the facility ($940 million) is .40, and the probability of no loss is .20.
Find the expected loss. (Input the amount as a positive value.)
The IQ of a randomly chosen individual is modeled using a Gaussian random variable.- what percentage of the population have an IQ of at least 140 and thereby are considered "genius?"
A random sample of 60 accounts gives a sample variance of 1,228.- Give a 95% confidence interval for the variance of all accounts.
What is the probability that the paint will be dry within 45 minutes?- What is the probability that the paint will be dry in between 40 and 50 minutes?
He randomly samples 45 oil wells throughout the United States and determines the mean output to be 10.7 barrels per day with a standard deviation of 1.3 barrels. Test the researcher's claim at the .025 level of significance.
what is the sampling distribution of the sample mean for a normally distributed random variable.if a variable iq is
Write a 2- to 3-paragraph analysis of your correlation and bivariate regression results for each research question. Do not forget to evaluate.
Calculate the net proceeds and the underwriter's spread on the stock offering.
Your bank sends you a summary statement, giving the average amount of all checks you wrote during the month. You have a record of the amounts of 17.
Airplane safety. Suppose that 62% of all adults think that airplanes would be safer places if pilots carried guns. An opinion poll plans to ask an SRS of 1009.
Let E be the event that the number which comes up when a single die is tossed is divisible by 3. Let X be the number of times that event E occurs in 3 tosses of the die.
Suppose that the probability that the student knows the answer to the question is 0.80 and the probability that the student guesses is 0.20. What is the probability that the fixed question is answered correctly?
Test whether the sample evidence indicates that the average time an employee stays with a company in their current positions is less than 3 years
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