Can I have help with this?

a. [ 2 Points] Determine which of the following random variables is discrete and which one is continuous? I. The number of light bulbs that burn out next week in a room with IQ light bulbs. 11. The amount of snow in Minnesota during winter. b. [ 2 Points] Look at the figure of normal curve in the right table to answer the questions in the left table. I. What is the value of u 20 ? 11. How much is the area of the region inside the curve that lies between the interval (50, 110) ? 50 70 90