# Question

The population of Seoul was studied in an article by B. Lee and J. McDonald, "Determinants of Commuting Time and Distance for Seoul Residents: The Impact of Family Status on the Commuting of Women" (Urban Studies, Vol. 40, No. 7, pp. 1283-1302). The authors examined the different occupations for males and females in Seoul. The preceding table is a frequency distribution of occupation type for males taking part in a survey. (Note: M = manufacturing, N = nonmanufacturing.) If one of these males is selected at random, find the probability that his occupation is

Occupation Frequency

Administrative/M .......... 2,197

Administrative/N .......... 6,450

Technical/M ............ 2,166

Technical/N ............ 6,677

Clerk/M ............... 1,640

Clerk/N ............... 4,538

Production workers/M ........ 5,721

Production workers/N ......... 10,266

Service ............... 9,274

Agriculture ............. 159

a. Service.

b. Administrative.

c. Manufacturing.

d. Not manufacturing.

Occupation Frequency

Administrative/M .......... 2,197

Administrative/N .......... 6,450

Technical/M ............ 2,166

Technical/N ............ 6,677

Clerk/M ............... 1,640

Clerk/N ............... 4,538

Production workers/M ........ 5,721

Production workers/N ......... 10,266

Service ............... 9,274

Agriculture ............. 159

a. Service.

b. Administrative.

c. Manufacturing.

d. Not manufacturing.

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