Question I have no idea for answer is...
What is the Z score for a value of X equal to the mean?
2006-10-03 18:28:15 · 4 answers · asked by Heather N 2 in Education & Reference ➔ Higher Education (University +)
Z = (X - μ)/σ
if X = μ, Z = 0
2006-10-03 18:39:04 · answer #1 · answered by novangelis 7 · 0⤊ 0⤋
Going out on a limb here and going to say zero.
To calculate a z-score- You are subtracting the x value from the mean and dividing the result by the standard deviation.
=(value of x-mean)/s.d.
If x = the mean then the Z score would be zero.
2006-10-04 01:36:48 · answer #2 · answered by TLWOLFf 4 · 0⤊ 0⤋
It's zero. Since you have to subtract the mean from your number, if your number is equal to the mean you'll get a zero for the numerator in the z score formula.
2006-10-04 01:43:08 · answer #3 · answered by PatsyBee 4 · 0⤊ 0⤋
definitely zero
2006-10-04 01:43:01 · answer #4 · answered by tje 2 · 0⤊ 0⤋