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Question 3 (i)
The relative humidity (in %) of a certain city for a month of 30 days was asfollows:
98.198.699.290.386.595.392.996.394.295.189.292.397.193.592.795.197.293.395.297.396.292.184.990.295.798.397.396.192.189
(i) Construct a grouped frequency distribution table with classes
84 - 86, 86 - 88,etc.


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Solution

(i) A grouped frequency distribution table of class
Size 2 has to be constructed. The class intervals will be 84 − 86, 86−88, and 88 − 90…
By observing the data given above, the required table can be constructed as follows.
Relative humidity(in %)Number of days(frequency)84861868818890290922929479496696987981004Total30


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