12.11: Chapter 11 Exercise Solutions
( \newcommand{\kernel}{\mathrm{null}\,}\)
Chapter 11: Normal Distribution
1. 49.9 or 49.85
2. 13.5
3. 15∼81∼97.35∼84
4. a) 0.9222
b) 0.9941
c) 0.9778
5. 0.54029
6. −0.55602
7. −0.2
8. 2.25
9. 7
10. 0.2451
11. 0.01426
12. 0.74064
13. $4.96
14. $2.76