Identity theft victims. According to The National Crime Victimization Survey (September 2015), published by the U.S. Department of Justice, about 17.6 million people were victims of identity theft over the past year. This number represents 7% of all persons age 16 or older in the United States. Of these victims, 86% reported that the identity theft occurred from the unauthorized use of a credit card. Consider a randomly selected person of age 16 or older in the United States.

a. What is the probability that this person was a victim of identity theft?

b. What is the probability that this person was a victim of identity theft that occurred from the unauthorized use of a credit card?