Independent Events and Unions of Events Practice Test

In a survey, 48% of respondents prefer Brand X, 42% prefer Brand Y, and 10% prefer both (they said either would be fine). Let Event A be “a randomly selected respondent prefers Brand X” and Event B be “the respondent prefers Brand Y.” Which statement about Events A and B is correct?

A bag contains 5 white and 5 black chips. Two chips are drawn with replacement. Let Event A be “the first chip is white” and Event B be “the second chip is white.” Which statement about Events A and B is correct?