We would need to have the parallelogram to answer this question.
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z-score of a value=(that value minus the mean)/(standard deviation)
The z-score, for a value z, is the probability that a Standard Normal random variable will have a value greater than z.
Negative z value means that the raw dat is below the mean, if z value is positive it means that the raw data is above the mean.
A negative z score is a value that is less than the mean value.