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Mathematics, 03.09.2019 22:30 11needhelp11

Fire load (mj=m2) 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 cumulative % 0 35 55 75 95 100 what proportion of fire loads are less than 300? what proportion of fire loads are at least 450? what proportion of fire loads are exactly 750? what proportion of the fire loads are less than 300? what proportion of the fire loads are at least 450?

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