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The result of a Bus 220 exam yields a mean of 60 with a standard deviation of 4. What proportion of the class scored below 50 and above 70? Use Chebyshevs Therom
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A school district is trying to estimate the proportion of students at the high school who would eat a school breakfast if the cafeteria were opened to students at 6 am. A new employer opened up within the district and th ...
Becky Fenton has 40/80/35 automobile insurance coverage. If two other people are awarded $70,000 each for injuries in an auto accident in which Becky was judged at fault, how much of this judgment would the insurance cov ...
A die is rolled four times. What is the probability that the sum of four numbers equals 13?
Express Courier Service has found that the delivery time for packages is normally distributed with mean 14 hours and standard deviation 2 hours. a. What percent of the packages will be delivered in less than 18 hours? b. ...
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?
When you purchased your? house, you took out a? 30-year annual-payment mortgage with an interest rate of 7% per year. The annual payment on the mortgage is 16,803. You have just made a payment and have now decided to pay ...
The risk-free rate of return is 5.2 percent and the market risk premium is 8.4 percent. What is the expected rate of return on a stock with a beta of 1.34?
Donald is a college student who has $4125 in a savings that he earned from his summer job. He plans to leave the $4125 in a certificate of deposit(CD) with Goldman Sachs bank earning 2% for three years, but his banker ha ...
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 ...
Interested in learning more about its fans, the marketing office of the Arena Football League (AFL) conducted a survey at one of its games. The survey had 952 respondents, 679 males and 273 females. Out of the 952 total ...
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