Heights of women in a population are approximately normal with μ = 64 in and σ = 2.5 in.
Approximately what percent of women have heights between 61.5 and 66.5 inches?
- A
50%
- B
99.7%
- Ccheck_circle
68%
- D
95%
Explanation
61.5 and 66.5 are exactly μ ± σ. By the empirical rule about 68% of values lie within 1 SD of the mean.