What is the probability that the average number of orders per month will be less than 25, if the Mean is 34 and the standard deviation is 10.2?
How do I calculate this statistics problem with a pencil and paper?
You could calculate z = (25 - 34)/10.2 by hand but you must then have access to z tables to get the actual probability.
Reply:ummmmm.........
idk
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