Question

The relative humidity (in %) of a certain city for a month of 30 days was as follows:

(i) Construct a grouped frequency distribution table with classes 84 – 86, 86 – 88, etc. 

(ii) Which month or season do you think this data is about ?

(iii) What is the range of this data ?

Answer 1

Size of class interval = 2 

(i) Frequency distribution table :

(ii) Relative humidity is more, these data are taken during rainy season. 

(iii) Maximum humidity = 99.2 

Minimum humidity = 84.0 

∴ Range = Maximum – Minimum 

= 99.2 – 84.9 

= 14.3