Question

In a normal distribution, about _% of the data lie within 1 standard deviation below and 2 standard deviations above the mean

Answer 1

81.8%

Step-by-step explanation

The percentage of data that lies between 1 standard deviation below and 2 standard deviations above the mean is the sum of the percentages between those two values,

So this is,

Hence, 81.8% of the data lies within 1 SD below and 2 SD above the mean.