Final answer:
The rate of work-related deaths among ironworkers is 2.5 times higher than the construction average.
Step-by-step explanation:
The rate of work-related deaths among ironworkers is 2.5 times higher than the construction average. According to the given data, the ironworkers fall under the construction industry category, and their total fatalities for 2013 were 69. Comparing this with the construction industry average, which is the sum of total fatalities for all the listed occupations, it can be calculated that the rate of work-related deaths among ironworkers is 2.5 times higher.