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Fifty numbers are rounded off to the nearest integer and then summed. If the individual roundoff errors are uniformly distributed between -.5 and .5, what is the approximate probability that the resultant sum differs from the exact sum by more than 3?
q1. what is the purpose of sampling?a. to verify that the population is approximately normally distributedb. to
Assume guests pay at check-in. If the hotel is overbooked, there is no check-in but hotel must pay customer $200 if they are turned away.
If the cost of electricity is $0.10/kWh, determine the cost of electricity per year.
If it is known that the population has a mean height is 68 inches with a standard deviation is 4 inches, how tall is this basketball player in inches?
Calculate the z score for a raw score of 10 from the folowing scores:10,20,25,5,30. Based on your anser , approximately what percentile does the raw score of 10 represent?
If the stock is currently priced at $43.40, what is the annual continuously compounded rate of interest?
Suppose that a random sample of 100 observations is taken from a normal distribution for which the mean 8 is unknown and the variance is 1, and
Raindrops are falling at an average rate of 30 drops per square inch per minute.
Features of index numbers
A recent article in the Arizona Republic indicated that the mean selling price of the homes in the area is more than $220,000. Can we conclude that the mean selling price in the Goodyear, AZ, area is more than $220,000? Use the .01 significance le..
What information does each measure of central tendency provide? Why are measures of variability essential statistical tools for describing behavior?
Construct a 90% confidence interval for the expected GPA for an individual who scored 710 on the math portion of the GRE.
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