Need help please with both questions

Question 4. The Pareto distribution is given by kok (2) p(x; k, b) = k-I O x 1, find E(x). b) Take the limit as k approaches 1 from the right. What can you say about E(x) when k = 1? b Assume k > 2 and find E(x2). Question 5. The resistance, R, for a certain type of resistor is known to be normally distributed. If 50% of all resistors have R > 10.2560 and 5% have R