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An investor has invested in nine different investments. The dollar returns on the different investments are probabilistically independent, and each return follows a normal distribution with mean $50,000 and standard deviation $10,000.
a. There is a 1% chance that the total return on the nine investments is less than what value?
b. What is the probability that the investor's total return is between $400,000 and $520,000?
Given the following values 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 and x and y form a linear equation in one variable, a equation in two variables, a quadratic equation a polynomial of three terms
Why is good listening important for both the audience and speaker? Provide two real or hypothetical examples of situations in which good listening was not employed and analyze the examples using a listening checklist to illustrate what went wrong.
how many wayss are there to select an unordered group of eight numbers between 1 and 25 inclusive with repetition? in
For a random sample of 10 fifth generation iPod music players, the mean battery life was 9.47 hours with a standard deviation of 2.14 hours.
A researcher wanted to invetigate whether there is a significant difference in the average age of instructors, assistant professors, assocated professors and full professors at a university. The faculty was selected at random and their ages were r..
I suspect that around 75% of my students will come to class each day (except for the exam dates.). How large sample do I need to ensure a 94% confidence with a margin of error of no more than 3%.
An education specialist is considering the use of instructional material on compact discs for a special class of third-grade students with reading disabilities.
Can you cite published examples for one or more countries or regions? Can you think of other cases where the expected probabilities do not quite agree with the empirical values based on relative frequency?
during a national debate on changes to health care a cable news service performs an opinion poll of 500 small-business
A canning company that cans pineapple juice has a machine that automatically fills 16-ounce cans. From quality control data it was found that the average amount of pineapple juice dispensed into the cans was sixteen ounces with a standard deviatio..
assignment-f 7.357r .83 df 4df 3203df 98 p gt .05 p lt .05 p lt .01question 1. what statistical
a bank manager wishes to provide prompt service for customers at the banks drive-up window. the bank currently can
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