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You have purchased five shares of stock in Diversified Machine Tools which has a mean value of $25 and a standard deviation of $9, and 10 shares in Northwest Foods, Inc. which has a mean value of $40 and a standard deviation of $11. The correlation between the two stock prices is -0.40.
a. Calculate the expected value of your portfolio.
b. Calculate the expected standard deviation of your portfolio.
c. What would be the difference in the expected standard deviation of your portfolio if the prices of the two stocks were independent?
Compute the coefficients of the regression line, interpret the coefficients - sample of 10 games and recorded the number of beers sold and the temperature in the middle of the game.
What is the probability that none of three randomly chosen persons areallergic to this drug . what is the probability that at least one person is allergic to this drug.
Consider an experiment that results in a positive outcome with probability 0.38 and a negative outcome with probability 0.62. Create a new experiment consisting of repeating the original experiment 3 times. Assume each repetition is independent of..
Delta Airlines quotes a flight time of 2 hrs, 5 minutes for its flights from Cincinnati to Tampa. We belive that actual flight times are uniformly distriubted between 2 hours and 2 hours 20 minutes.
Historically, 70% of your customers at Rodale Emporium pay for their purchases using credit cars. In a sample of 20 customers, find the probability that
Determine relative frequency of X=4? Generate the cumulative frequencies.
Share your determination of probability in each of the situations. Explain how these two ways of assessing probability are different and how they can help make decisions.
However, 2% of the Dallas clocks are defective. If you go shopping and buy a clock from this company, what is the probability that you buy a defective clock?
What is the probability of a false negative test (the probability that a person having muscular distrophy tests negative)?
JBGHI demands a sample large enough to ensure an error of ± 2% with 90% confidence. What is the necessary sample size?
Create a 95%confidence interval for the value of the population mean, given that their is a sample mean of 49 and a standard deviation of 3 but now found those valuesfrom a sample of only 20 observations.test the hypothesis allowing for type 1 error ..
A large population of overdue bills has balances that fallow a normal curve. When we take a sample of 100 of these the average is $500 and the standard deviation is $100.
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