Suppose that fund- raisers at a university call recent graduates to request donations for campus outreach programs. They report the following information for last year€™s graduates:

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 1000 graduates.
b. What is the most common value of x in this population?
c. What is P( x $ 25)?
d. What is P( x . 0)?

Transcribed Image Text:

Size of donation 0 $10 $25 $50 Proportion of calls 045 0.30 0.20 0.05