Suppose that fundraisers at a university call recent graduates to request donations for campus outreach programs They report the following information for last year s graduates Size of donation Proportion of calls 0 40 0 c What is P x 25 10 d What is P x 0 25 50 Three attempts were made to contact each graduate A donation of 0 was recorded both for those who were contacted but declined to make a donation and for those who were not reached in three attempts Consider the variable x Amount of donation for a person selected at random from the population of last year s graduates of this university a Write a few sentences describing what donation amounts you would expect to see if the value of x was observed for each of 1 000 graduates to donate 10 roughly You would expect roughly of the graduates to donate nothing roughly 50 The frequencies would be close to but not exactly these values The four frequencies would add to 0 35 0 20 0 05 b What is the most common value of x in this population to donate 25 and roughly to donat