Q3. The relative humidity (in %) of a certain city for a month of 30 days was as follows:
98.1 98.6 99.2 90.3 86.5 95.3 92.9 96.3 94.2 95.1
89.2 92.3 97.1 93.5 92.7 95.1 97.2 93.3 95.2 97.3
96.2 92.1 84.9 90.2 95.7 98.3 97.3 96.1 92.1 89
(i) Construct a grouped frequency distribution table with classes 84 - 86, 86 - 88, etc.
 

Answers (1)

(i) The record of Relative Humidity of a certain day can be assembled as:

SNo. Relative Humidity Intervals

Frequency(the no of days it was observed)

1 84-86 1
2 86-88 1
3 88-90 2
4 90-92 2
 5 92-94 7
6 94-96 6
96-98 7
8 98-100 4

Basic check

Total =1+1+2+2+7+6+7+4= 30

 

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