Since many people receive both news and advertising through social media, how can you tell the difference between news and advertising? or advertising and social connection? or news and opinion?

The biggest difference is that publicity is paid whereas the effects of public relations are achieved by giving the media by type of articles or presentations.

Explanation:

Advertising and the public that are mutually beneficial.  

Paid vs Free:

Derive paid advertisements to promote online, print, TV, home and radio across various media types. PR is, however, a strategic interaction process that establishes partnerships between organizations

Advertising:

You charge to place an ad in the news.

Social Connection or Public Relation:

The Corporation for Public Relations creates techniques for media advertising. PR practitioners establish a number of techniques to bring the company a positive media coverage which is very efficient in growing the brand awareness of your target audience.

a manufacturer of printed circuit boards uses exponential smoothing with trend to forecast monthly demand of its product. at the end of december, the company wishes to forecast sales for january. the estimate of trend through november has been 200 additional boards sold per month. average sales have been around 1000 units per month. the demand for december was 1100 units. the company uses α = 0.20 and β = 0.10. make a forecast including trend for the month of january.