In a recent consumer payment study, respondents were asked which payment type feels safest for online purchases. Credit card was selected as safest by 42% of the respondents. None of the respondents selected both credit card and debit card. Forty-seven percent selected neither credit card nor debit card. If a respondent’s survey were randomly selected, determine the following probabilities:
a. The respondent selected credit card and did not select debit card.
b. The respondent selected debit card.
c. The respondent selected debit card, given that the respondent selected credit card.
d. The respondent did not select credit card, given that the respondent did not select debit card.