$1$ Do Millennials or Gen$-$Xers feel more tense or stressed out at work? A survey of employed adults conducted online by Harris Interactive on behalf of the American Psychological Association revealed the following:FELT TENSE OR STRESSED OUT AT WORKAGE GROUP Yes NoMillennials $175206$Gen$-$Xers $183390($Source: Data extracted from The $2016$ Work and Well$-$Being Survey, American Psychological Association and Harris Interactive, March $2016,$ p$.45.)$a$.$ Give an example of a simple event.b$.$ Give an example of a joint event$\mathrm{.}2.$ How will marketers change their social media use in the near future? A survey by Social Media Examiner reported that $76\%$ of B$2$B marketers $($marketers that focus primarily on attracting busi$-$nesses$)$ plan to increase their use of LinkedIn, as compared to $52\%$ of B$2$C marketers $($marketers that primarily target consumers$).$ The survey was based on $1,780$ B$2$B marketers and $3,306$ B$2$C marketers.The following table summarizes the results:BUSINESS FOCUS INCREASE USE OF LINKEDIN? B$2$B B$2$C TotalYes $1,3531,7193,072$No $4271,5872,014$Total $1,7803,3065,086($Source: Data extracted from $2016$ Social Media Marketing Industry Report, socialmediaexaminer.com.$)$If a marketer is selected at random, what is the probability thata. he or she plans to increase use of LinkedIn?b$.$ he or she is a B$2$C marketer?c$.$ he or she plans to increase use of LinkedIn or is a B$2$C marketer?d$.$ Explain the difference in the results in $($b$)$ and $($c$).$e$.$ Suppose you know that the marketer is a B$2$B marketer. What is the probability that he or she plans to increase use of LinkedIn?f$.$ Suppose you know that the marketer is a B$2$C marketer. What is the probability that he or she plans to increase use of LinkedIn?g$.$ Are the two events, increase use of LinkedIn and business focus, independent? Explain.