Answer:
C. The data value must be less than the mean.
Step-by-step explanation:
We have been given a statement and we are asked to choose the correct option about our given statement.
Since a z-score tells us that a data value is how many standard deviation away from mean.
To find the z-score for a given data value or raw score, we subtract the mean of data set from the given raw score and divide the result by standard deviation of the data set
If a data value is greater than mean, then it will have a positive z-score. If a data value is smaller than mean, then it will have a negative z-score.
Upon looking at our given choices we can see that option C is the correct choice.
