4.22 How will marketers change their organic (unpaid) social media postings in the near future? A survey by Social Media Examiner reported that 65% of B2B marketers (marketers who focus primarily on attracting businesses) plan to increase Linkedln organic social media postings, as compared to 43% of BZC marketers (marketers who primarily target consumers). The survey was based on 1,947 828 marketers and 3,779 BZC marketers. The following table summarizes the results. BUSINESS FOCUS INCREASE LINKEDIN POSTINGS? a. Suppose you know that the marketer is a B2B marketer. What is the probability that he or she plans to increase Linkedin organic social media postings? b. Suppose you know that the marketer is a B2C marketer. What is the probability that he or she plans to increase Linkedin organic social media postings? c. Are the two events, increase Linkedin postings and business focus, independent? Explain