EXERCISE 1. The following table shows the numbers of viral infected patients not in hospital and in hospital subdivided by sex and age. NOT IN HOSPITAL IN HOSPITAL Age (years) Males Females Males Females 0 - 14 43 42 25 15 - 29 59 49 55 27 30+ 65 28 39 14 Obtain a two way summary table to show how the proportion (in percent) of patients who are in hospital varies with : i. Age ii. Sex 2. The table below shows Accidental deaths by place and time. YEAR PLACE OF DEATH 1971 1976 1980 1982 1983 Transport 8401 7306 6945 6407 6138 Work 860 712 630 457 443 Home 6917 6250 6009 5468 5514 Other 3068 2831 2516 2781 2459 Construct: a. A bar chart showing accidental deaths by place for each year shown. b. A pie chart showing accidental deaths by place for 1983. A sample of 11 patients admitted for diagnosis and evaluation to a newly opened psychiatric ward of a general hospital experienced the following lengths of stay. PATIENT NUMBER LENGTH OF STAY PATIENT NUMBER LENGTH OF STAY 14 14 28 14 18 QUIAWN 24 14 22 14 Find: a. The mean length of stay for these patients. b. The variance c. The mode. BE 32 .C O m 9