Question

about what percentage of the data lies within 2 standard deviations of the mean in a normal distribution?○ 47.5%○ 68%○ 95%○ 99.7%

Explanation:

This is a key rule of the empirical (68-95-99.7) rule for normal distributions, which states that ~95% of data falls within 2 standard deviations of the mean.

Answer:

C. 95%