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How did the black frontier experiences compare with those of white compatriots?
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A system consists of five independent components in parallel. The system will work if at least one of the five components works. Let Ci represent the event that component i works, i=1,...,5. P(Ci)=0.97 for all i. What is ...
An important part of the customer service responsibilities of a cable company relates to the speed with which trouble in service can be repaired. Historically, the data show that the likelihood is 0.75 that troubles in a ...
Suppose a researcher is interested in the number of good versus bad dreams that students have during final exam week. The researcher states that p = 0.52 that a student will have a bad dream during final exam week. (a) ...
Sixty-seven percent of adults have looked at their credit score in the past six months. If you select 31 customers, what is the probability that at least 20 of them have looked at their score in the past six months?
A survey found that 80% of college students had access to a tablet. A sample of 250 college students is taken. Find the mean and standard deviation for this binomial distribution.
Medical researchers studying the effects of a low carb diet versus a normal diet randomly assigned obese patients to one of the two diets. The patients were followed up with after several months and the amount of weight ...
What is the present value of a security that will pay $9,000 in 20 years if securities of equal risk pay 12% annually? Round your answer to the nearest cent
15-18 years 4 19-22 years 5 23-26 years 6 27-30 years 9 31-34 years 2 35-38 years 7 Based on the frequency distribution above, find the relative frequency for the class 15-18 . Relative Frequency = % Give your answer ...
Can a business have too much money in Cash, meaning cash on hand as well as in checking and savings accounts? What if a business had 100 million dollars in these cash accounts but only needed half of that for what Keynes ...
Your company's revenues were $3 million this year. You paid out $500,000 in salaries and your only other cash outflow was the purchase of a piece of construction equipment for $1 million that is to be depreciated to a ze ...
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