Consider the following data on types of health complaint (J= joint swelling, F= fatigue,...

Consider the following data on types of health complaint (J= joint swelling, F= fatigue, B =back pain, M =muscle weakness, C coughing, N =nose running/ irritation, O= other) made by tree planters. Obtain frequencies and relative frequencies for the various categories, and draw a histogram. (The data is consistent with percentages given in the article “Physiological Effects of Work Stress and Pesticide Exposure in Tree Planting by British Columbia Silviculture Workers,” Ergonomics, 1993: 951–961.)