Continuous Random Variables
Continuous Random Variables
Answers
1. The graph is a horizontal line with height \(1 / 7\) from \(x=5\) to \(x=12\)
3. The graph is a bell-shaped curve centered at \(100\) and extending from about \(70\) to \(130\).
5. \(0.212\)
7. \(0.76\)
9. \(\mu_{A}=100\), \(\mu_{B}=200\), \(\mu_{C}=300\), \(\sigma_{A}=7\), \(\sigma_{B}=20\), \(\sigma_{C}=15\)
11. \(0.3542\)
13. a. The graph is a bell-shaped curve centered at \(64\) and extending from about \(63.25\) to \(64.75\).b. \(0.5\)
c. \(64\)