4. There are twenty envelopes on a table and 1.I'ou get to pick one at random. In one of the emelopes there is a 51m hill, and in the other nineteen there are blank pieces of paper. What is the expected value for picking an envelope? Applied Mathematics, Fourth Edition Worksheet 4.3 5. A small organization is renting an outdoor arena for 511100 and hosting a concert. If is it sunny outside, they:I can expect to earn SEDDG in ticket sales. If It rains, the com pane will lose the 510m fee and the event will be cancelled. If there is a m chance of rain on the clay of the event, what Is the expected value of the concert