RELEVANT Magazine (a culture magazine) keeps in touch and informs their readers by posting updates through various social networks. These updates take up a large part of both the marketing and editorial teams’ time. Because these updates take so much time, marketing is interested in knowing whether reducing posts (updates) on Facebook (a specific site) will also lessen their fan interaction; if not, both departments may pursue using their time in more productive ways. The weekly number of posts (updates) and fan interactions for Facebook during a 9-week period are recorded in Table. Compute the covariance and correlation between Facebook posts (site updates) and fan interactions. The data are stored in the data file RELEVANT Magazine. Facebook Posts (site updates) and Fan InteractionsFacebook posts (updates), x 16 31 27 23 15 17 17 18 14Fan interactions, y 165 314 280 195 137 286 199 128 462
RELEVANT Magazine (a culture magazine) keeps in touch and informs their readers by posting updates through various social networks. These updates take up a large part of both the marketing and editorial teams’ time. Because these updates take so much time, marketing is interested in knowing whether reducing posts (updates) on Facebook (a specific site) will also lessen their fan interaction; if not, both departments may pursue using their time in more productive ways. The weekly number of posts (updates) and fan interactions for Facebook during a 9-week period are recorded in Table. Compute the
Facebook Posts (site updates) and Fan Interactions
Facebook posts (updates), x 16 31 27 23 15 17 17 18 14
Fan interactions, y 165 314 280 195 137 286 199 128 462
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