Normal Distribution Answers

1. a. 0.4032
b. 0.4222
c. 0.7615
d. 0.9693

2. a. 0.7062
b. 0.8413
c. 0.3696

3. 0.7258

4. 0.816 (to 3 sig. fig.)

5. a. 0.1587

b. 227 days

6. a. 80.3%

b. 190

7. 57.48% of bags in the range 11 kg to 15 kg.

8. 3.17%

9. 0.061

10. 19.6%