The following 3 questions (Q10 to Q12) are based on the following information: John has the phone numbers of many young ladies. Some of these young ladies are blonde and others are brunettes. In addition, John knows that some are single while others have boyfriends. The exact breakdown is as follows: Blonde Brunette Single 15 12 Taken 10 18 Find the following probabilities: Q10: What is the probability of selecting someone who is taken, given that they are blonde? Q11: What is the probability of selecting a single brunette? Q12: What is the probability of selecting someone who is brunette, given that they are taken? Q13: A coin is tossed four times. Which of the following sequences of heads (H) and tails(T) is more likely? A. HTHT B. HHHT C. THHH D. TTTT E. all are equally likely