Final answer:
The equivalent z-score for being in the top 1% of your graduating class can be calculated using the standard normal distribution.
Step-by-step explanation:
The equivalent z-score for being in the top 1% of your graduating class can be calculated using the standard normal distribution table or a z-score calculator. In this case, since we know that Susan's z-score was 2.0, we can use the same approach. A z-score of 2.0 means that Susan scored 2 standard deviations above the class mean.
To find the percentage corresponding to a z-score of 2.0, we can refer to the empirical rule, also known as the 68-95-99.7 rule. According to this rule, about 95% of the values lie between z-scores of -2 and 2. Since the top 1% corresponds to values above 2 standard deviations, we can conclude that being in the top 1% of the graduating class is equivalent to having a z-score greater than 2.0.
Therefore, the equivalent z-score for being in the top 1% of your graduating class is greater than 2.0.