ryvon2018 ryvon2018

28-12-2023
Mathematics

Answered

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:

Size of Donation $0 $10 $25 $50
Proportion of Calls 0.45 0.30 0.20 0.05
Three attempts were made to contact each graduate. A donation of $0 was recorded both for those who were contacted but who 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.

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