Suppose you have a mean standardized score of 1200 points with a standard deviation of 200 points. This data is normally distributed. What is the z-score of 1300 points?

Question

anonymous · Answer

Do you know the z-score formula?

anonymous · Answer

hm not quite sure

anonymous · Answer

Ok well first off z-score isn't in units, it's just a distance, it's how many standard deviations you are form the mean and with this we get $$\Huge \frac{x- \mu }{ \sigma } $$

x: is the actual value (1300) 
$$\Large \mu$$=mean
$$\Large $$=standard deviation.

So all you gotta do is plug int and solve

anonymous · Answer

0.50. got it! thanks a lot much appreciated :)

anonymous · Answer

You're welcome! Anytime