Despite the availability of several modes of transportation, including metro and ride-booking services, most people in the Washington, D.C., area continue to drive their own cars to get around (The Washington Post, June 6, 2019). According to a survey, 62% of area adults use their own cars daily. Suppose only 38% of the area’s adults under 35 use their own cars daily. It is known that 43% of the area’s adults are under 35. 

a. What is the probability that a Washington, D.C., area adult is under 35 and uses his/her own car daily? 

b. If a Washington, D.C., area adult uses his/her own car daily, what is the probability that he/she is under 35?