## Question 358:

1## Answer:

No answer provided yet.Yes, if they have the same value. Take the following sample of data (notice 170 is in there twice)

150

100

300

325

170

155

170

The mean of the sample is 195.7 and the standard deviation is 83.5. Using the forumla for z-score (data point - mean )/SD we convert the above to standardized scores and get:

-0.55

-1.15

1.25

1.55

-0.31

-0.49

-0.31

Now the two z-score for 170 are now -0.31.