Union Probability from a Contingency Table | ShinStats

Union Probability from a Contingency Table | ShinStats
Challenge:
You surveyed some people and ask two questions: “What is your gender?” and “What is your political party?”
The people surveyed responded that they are either male or female, and that they are either a democrat, republican or independent.
Results of the survey are summarized as follows:
Calculate the following:
a) probability that a respondent is a Democrat or Male
b) probability that a respondent is Female or Independent
c) probability that a respondent is Male or Republican
d) probability that a respondent is Independent or Republican***