Asked by Becky
What is the standard deviation of a normal distribution, whose mean is 35, in which an x-value of 23 has a z-score of -1.63?
Answers
Answered by
MathGuru
Use z-score formula and solve for standard deviation:
z = (x - mean)/sd
-1.63 = (23 - 35)/sd
Solve for sd.
z = (x - mean)/sd
-1.63 = (23 - 35)/sd
Solve for sd.
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