Answer :
Approximately 2.28% of the data is more than 2 standard deviations above the mean in a normal distribution.
The data follows a symmetrical bell-shaped curve in a normal distribution. The data's average is located in the middle of the curve, and the standard deviation is used to calculate how much the data vary from the average. An outlier is a value that is two or more standard deviations apart from the mean. Approximately 68.27% of the data, 95.45% of the data, and 99.73% of the data are within one standard deviation, two standard deviations, and three standard deviations, respectively, of the mean. As a result, more than two standard deviations are above the mean for 2.28% of the data.
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