29. Consider the following data on type 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.)

OONJC F B B F OJOOM O F F OO N O N J F JB OC J OJ J F N O B MO J M O B O F J O O B N C O O OM B F J O F N