Fire load (MJ/m^2) is the heat energy that could be released per square meter of
ID: 3299769 • Letter: F
Question
Fire load (MJ/m^2) is the heat energy that could be released per square meter of floor area by combustion of contents and the structure itself. The following cumulative percentages are for fire loads in a sample of 388 rooms: value 0 150 300 450 600 750 900 cumulative % 0 19.0 37.1 62.1 77.0 86.7 93.5 value 1050 1200 1350 1500 1650 1800 1950 cumulative 95.1 98.0 98.4 99.5 99.6 99.8 100.0 (a) Construct a relative frequency histogram. Comment on interesting features. (Select all that apply.) The relative frequency distribution is symmetric. The relative frequency distribution exhibits a large negative skew. The relative frequency distribution exhibits a large positive skew. The typical middle value is somewhere between 250 and 300. The typical middle value is somewhere between 400 and 450. (b) What proportion of fire loads are less than 600? At least 1200? (Round your answers to three decimal places.) lew than 600 at least 1200 (c) What proportion of the loads arExplanation / Answer
a) Graph A is correct.
Features: Option C and Option E are correct.
b) Less than 600 = 0.77
At least 1200 = 0.02
c) Between 600 and 1200 = 0.21
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