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 $130$ .

9. $\mu_{A}=100$ , $\mu_{B}=200$ , $\mu_{C}=300$ , $\sigma_{A}=7$ , $\sigma_{B}=20$ , $\sigma_{C}=15$

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.

$64$