R O.
asked • 10/21/18You can type 20 words per minute. What is your z-score? Round to 1 decimal places.
You can type 20 words per minute. What is your z-score? Round to 1 decimal places.
(This is the ONLY information I am given to solve. I know that z score= 20-mean/standard deviation but since I am not given a mean OR standard deviation I am really confused on how to solve this and what the answer should be. Please help!)
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1 Expert Answer
Andy C. answered • 10/21/18
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Math/Physics Tutor
Mark is correct.
the z-score is (20 - U)/s where U is the mean and s is the standard deviation
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Mark M.
No need to be confused. Without the mean and standard deviation the z-score cannot be calculated. Talk to whomever gave this problem.10/21/18