Answer :
It's not possible to determine which z-score is least likely to obtain admission to the graduate program without knowing more information about the specific admissions process and criteria.
However, in a standard normal distribution, which is a type of distribution that has a mean of 0 and a standard deviation of 1, a z-score of 0 represents the mean. This means that a z-score of 0 would be an average score, and it would not necessarily make an applicant more or less likely to be admitted to the graduate program. Z-scores of 1.0 and -1.0 represent scores that are one standard deviation above and below the mean, respectively. Z-scores of 2.0 and -2.0 represent scores that are two standard deviations above and below the mean, respectively. Depending on the specific admissions process and criteria, any of these z-scores could be less likely to obtain admission to the graduate program.
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