According to the empirical rule, approximately what percent of the data should lie within μ±σ?

Right Option is missing. Right answer is 68.25%

Broken down, the empirical rule shows that 68% falls within the first standard deviation (µ ± σ), 95% within the first two standard deviations (µ ± 2σ), and 99.7% within the first three standard deviations (µ ± 3σ).