Question

A set of data has a mean of 0.5 and a standard deviation of 0.01. A data point of the set has a z-score of 2.5. What does a z-score of 2.5 mean?
The data point is 0.01 standard deviations away from 2.5.
The data point is 0.01 standard deviations away from 0.5
The data point is 2.5 standard deviations away from 0.01.
The data point is 2.5 standard deviations away from 0.5.

Answer 1

The Z-score just describes how many standard deviations away from the mean the data point is.
SO in this case our z-score is 2.5
That means that our data point is 2.5 standard deviations away from our mean which is .5 in this case

Answer 2

oh, thanks!