The data in the following table represent the annual incidence rates (per 100,000 persons) of a reported disease recorded over five-year periods from 1915 to 1955. Complete parts (a) through (d) below. Year 1915 1920 1925 1930 1935 1940 1945 1950 1955 17.7 Rate 3.2 2.2 54 7.6 8.9 7.5 10.7 22.6 a. Plot the data using the coded year, where X, =0 represents 1915. Which plot below shows the data? OD. O A. OB. VC. 257 . 257 25 20- 20- 15- Rate Rate 10- 10- 5- . . of 20 20 20 Coded Year 20 Coded Year Coded Year Coded Year b. Compute the linear trend forecasting equation and plot the trend line. Y, = [+()Coded Year (Round to three decimal places as needed.)