For Exercise 4.109, see page 220; for 4.110, see page 223; for 4.111 to 4.114, see page 228; for 4.115, see page 230; and for 4.116 to 4.118, see page 235.

Question 4.111

4.111 Find .

The random variable has mean . If , what is ?

4.111

68.