Problema Solution
of the people asked to help in an election, 35% will work, 65% will donate money, and 25% will do both. find the probability that a person chosen at random will either work or donate, but not both.
Answer provided by our tutors
the % of people that will either work or donate, but not both is: (35 - 25) + (65 - 25) = 10 + 40 = 50
the probability that a person chosen at random will either work or donate, but not both is:
p = 50/100 = 1/2 = 0.5.