An owner finds that when he uses a clamshell luggage carrier on top of his car, it cuts his gas mileage 3.1%. If he normally gets 40 mpg, what is his mileage when he uses the carrier?
A. 37.11
B. 38.76
C. 39.13
D. 39.89
Answer: B
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In a lot of n components, 30% are defective. Two components are drawn at random and tested. Let A be the event that the first component drawn is defective, and let B be the event that the second component drawn is defective. For which lot size n will A and B be more nearly independent: n=10 or n=10,000? Explain.
What will be an ideal response?
________ effects occur rapidly due to short-term exposures.
Fill in the blank(s) with the appropriate word(s).
All of the following helped to make the prosperity of the 1920s possible EXCEPT
A. government stimulation of the economy. B. rapid expansion of capital. C. increased productivity of workers. D. perfection of assembly-line production. E. advertising and credit buying.
To make show weight, 60 days before a market hog show the desired weight of a pig is:
A. 235 to 270 pounds B. 180 to 220 pounds C. 140 to 160 pounds D. 65 to 80 pounds