Richard has a 65% chance of getting a donation on each call he makes for his college's telefund. The probability that his first donation will come on either his 4th or 5th call is 0.038.
IGNOU MSCCFT and PGDCFT Exam Question Pattern: MCFT003 Counselling and Family...
Richard has volunteered to help with his colleges telefund. His sa.pdf
1. Richard has volunteered to help with his college's telefund. His sales experience leads him to
believe that he has a 65% chance of getting the person he calls to donate. What is the probability
that his first donation will be among the 4th or 5th calls? (Round to nearest ten thousandth)
Solution
P = 0.35 * 0.35 * 0.35 * 0.65 + 0.35 * 0.35 * 0.35 * 0.35 * 0.65 = 0.0376, rounding
it = 0.038