A normal distribution has a mean of 700 and a standard deviation of 35. What is the probability that a value selected at random is at most 630?
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Answer:
If we try the get the median of $100 and $75 It comes out that the salary will be at $87.5. each
Jordan Trent at ChaCha Visit the source
Other answers
The square root of a variance is the standard deviation, often represented by the Greek symbol sigma (lower case) (or in other words, squaring the S.D. is the variance) .
Richard Mingo
Sorry, but I wasn't able to find an answer to that probability distribution equation question. However, I did find a probability calculator that may be able to help you out at http://stattrek.com/tools/probabilitycalculator.aspx . !
James Bernard
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