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5 Questions returned
No. & Date AskedQuestion
# 620 :: 2/8/09
Question 620 has been Answered
The total area under the curve of the standard normal distribution is not necessarily 1.0. A) True B) False. . .

Normal Curve, Standard Normal Distribution, Standard Normal Curve

# 452 :: 10/3/08
Question 452 has been Answered
why does a z score always have a mean of 0 and a standard deviation of 1?. . .

Standard Normal Curve

# 291 :: 7/26/08
Question 291 has been Answered
According to the standard normal curve, _____% of values should fall; within +/ – 1 standard deviation(s) from the mean; +/- 3 standard deviation. . .

Standard Normal Curve, above .10

# 215 :: 6/3/08
Question 215 has been Answered
Annual starting salaries for college graduates with degrees in business administration are generally expected to be between $30,000 and $45,000. Assum. . .

Standard Normal Curve, Confidence Intervals, Standard Deviation, Normally Distributed

# 41 :: 10/29/07
Question 41 has been Answered
On a scale from 0 to 100, the mean level of economic development among the countries in the world is 65 and the standard deviation is 10. What proport. . .

Z-Score, Standard Normal Curve