2017 October 2,

Math 265: Day 9

Carleton College, Prof. Joshua R. Davis

Due at the start of class on Day 11

Complete these problems. Write them up carefully, in the order assigned, for handing in with the rest of your homework.

• Let X ~ Pois(λ). Show that E[X²] = λ (λ + 1). (Hint: This is really a Calculus II-style power series exercise in disguise.)
• There are no other problems. :)