Daily commute times are approximately normal with μ = 30 min and σ = 5 min.
Approximately what percent of commutes are LESS than 25 minutes?
- A
32%
- Bcheck_circle
16%
- C
2.5%
- D
84%
Explanation
25 = μ − σ. About 68% lie within 1 SD; 32% lie outside, with 16% in each tail.