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The average gas mileage of a certain model car is 27 miles per gallon. If the gas mileages are normally distributed with a standard deviation of 1.5, find the probability that a car has a gas mileage of between 26.8 and 27.3 miles per gallon.
Statistics and Probability, Statistics
There is a new treatment for smokers to stop smoking. In an experiment, 85% of 300 smokers quit after 10 days of the treatment. What is the reasonable range for the success rate p of our new treatment? Which is the 95% c ...
Kurt Simmons has 70/130/20 auto insurance coverage. One evening, he lost control of his vehicle, hitting a parked car and damaging a storefront along the street. Damage to the parked car was $7,300, and damage to the sto ...
On average, the parts from a supplier have a mean of 97.5 inches and a standard deviation of 12.2 inches. Find the probability that a randomly selected part from this supplier will have a value between 85.3 and 109.7 inc ...
Total cholesterol in children 10 to 15 years of age is assumed to follow a normal distribution of 191 and a standard deviation 22.4. What proportion of children 10 to 15 years of age has total cholesterol between 180 and ...
Honda is the manufacturer of 4 of the top 9 vehicles in terms of fuel economy. - Determine the probability distribution for the number of Hondas in a sample of 3 cars chosen from the top 9? - What is the likelihood that ...
Bond A is a 1-year zero-coupon bond. Bond B is a 2-year zero-coupon bond. Bond C is a 2-year 10% coupon bond that pays annually. The yield to maturity (annually compounded) on bond A is 10%, and the price of bond B is $8 ...
The December CBOT Treasury bond futures contract is quoted at 92-19. If annual interest rates go up by 1.50 percentage points, what is the gain or loss on the futures contract? (Assume a $1,000 par value, and round to th ...
If the coefficient of determination is 0.738, what percentage of the data about the regression line is unexplained?
A stock's price fluctuations are approximately normally distributed with a mean of $104.50 and a standard deviation of $23.62. You decide to purchase whenever the price reaches its lowest 20% of values. What is the most ...
A population has a mean u=81 and a standard deviation o=28. Find the mean and standard deviation of a sampling distribution of sample means with a sample size n=239. ux= ox=
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Why might a bank avoid the use of interest rate swaps, even when the institution is exposed to significant interest rate
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