chapter 16.1_3,7,17,25

Problem 3

0 - 1/2 $5 - 13/52 $10- 12/52 $30- 1/52

  1. E(p)=$4.13

  2. <$4.13

Problem 7

0 0.1 50k 0.3 20k 0.6

E(p)=0.350k + 20k0.6= 27 k

Problem 17

3 d 0.07 2 d 0.11 1 d 0.21 0 d 0.61

E(p)=0.64

E(sd)=sqrt(values squared)=0.93

Problem 25

  1. 3X = 3(10)=30, sd = 6

  2. Y+6 = 26, sd=5

  3. mean=3, sd=5.4

  4. mean=-10, sd=5.4

  5. mean=20, sd=2.83