How many of each kind of calculator was ordered
The college store paid $1572 for the order of 46 calculators. Store paid $11 for each scientific calculator. Others, all graphing calculators, cost store $52 each. How many of each kind of calculator was ordered?
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At the same time, you're taking a calculus class that is attended by 250 students. It would be simple for you to hand out a survey in class. Would you suggest this to your supervisor in marketing company? Discuss.
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A certain component is critical to operation of an electrical system and must be replaced immediately upon failure. If the mean lifetime of this kind of compomnent is 100 hours and it standard deviation is 30 hours,
Relationship between temperature reading F on Fahrenheit scale and temperature reading C on Celsius scale is provided by C = 5/9 (F-32).
You wish to estimate the proportion of adults that have ever used alternative medicine. Obtain a sample size that will ensure a margin of error of at most 0.01 for a 95% confidence interval.
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A random sample of average debt (in dollars) at graduation from 30 of the top 100 public colleges and universities is listed below. Is there sufficient evidence at a=0.01 to conclude that the population mean debt at graduation is less than $18,000
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