Asked by Katie
In a normal distribution with mu = 25 and sigma = 3, what number corresponds to z = -3?
is it 16, 18, or 20
Answers
Answered by
MathGuru
Formula:
z = (x - mean)/sd
Plug in the numbers you know from the problem:
-3 = (x - 25)/3
Solve for x.
z = (x - mean)/sd
Plug in the numbers you know from the problem:
-3 = (x - 25)/3
Solve for x.
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