1. Pram, a research staff at a private company in Indonesia, was asked to conduct a study to determine the relationship between the frequency of public relations events and the number of reports in the media each month. The data is available as follows: Table. Frequency of Ad impressions and Number of News in the Media PR event frequency (X) Number of Newsletters month (Y) January 6 February March April May Based on the data above calculate: a. Calculate the equation of the regression line from the data. b. Calculate the correlation c. Calculate how big the determining coefficient is