Statistics

10.1.2 BUSINESS STATISTICS 102 [100] QUESTION ONE [40] Covid-19 took the world by storm and by April 2020, large numbers of people around the world were tested positive for the virus. In the frequency distribution below, the number of people infected in 40 different countries are given. Hundreds of thousands of people Number of countries infected [1.0 ; 3.0) [3.0 ; 5.0) CO [5.0; 7.0) 17 [7.0 ; 9.0) 6 [9.0; 11.0) [11.0; 13.0) TOTAL 40 1.1 Calculate the estimated mean number of people infected in these 40 countries (4) 1.2 Compute the median. (5) 1.3 calculate the mode. (5) 1.4 What information about the skewness of the data can be inferred from your answers to (1.1), (1.2) and (1.3) above? (3) 1.5 Calculate the coefficient of variation for the above data (9) 1.6 Calculate the mid-50% range the above data (7) 1.7 Construct the ogive greater than ogive and show the median calculated in 1.2 above (7)