Answer:
-2.4
Step-by-step explanation:
To calculate how many standard deviations you are from the mean you use Z-score, which is exactly that.
The formula is:
[tex]Z-score = \frac{X-\mu}{\sigma} \\Where \\X: Value \\\mu: Mean \\\sigma: Standard\ deviation \\[/tex]
Replacing the information given in the formula you get:
[tex]Z-score = \frac{3-6}{1.25} = -2.4[/tex]
She is -2.4 standard deviations from the mean or 2.4 to the left
