I need explanation for the answer especially question c

Suppose that in your city 36% of the voters are registered as Democrats, 35% as Republicans, and 13% as members of other parties. Voters not aligned with any ofcial party are termed "Independent." You are conducting a poll by calling registered voters at random. In your rst three callsawhat is the probability that you talk to a) all Republicans? " b) no Democrats? c) at least one independent? a) The probability of calling all Republicans is 1:]. (Round to three decimal places as needed.) b) {The probability of calling no Democrats is D (Round to three decimal places as needed.) ' k c) The probability of calling at least one Independent is D. (Round to three decimal places as needed.)