Cumulative frequency table

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Cumulative frequency table

• Statistics

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Q1 average of 30th and 31st days rainfall and
from the cum. freq table these are both 0.5 mm
so Q1 0.5mm Similarly Q3 average of 90th and
91st days rainfall and from the cum. freq table
these are both 1.5 mm so Q3 1.5mm The semi
interquartile range Q3 Q1 1.5 0.5 1
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