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

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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.

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

(iii) What is the range of this data?

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(i) Since the given data is very large, we construct a grouped frequency distribution table of class size 2.

class interval will be 84-86, 86-88, 88-90, 90-92 and so on.

The data is represented in the grouped frequency distribution table as:

(ii) The humidity is very high in the given data. Since the humidity is observed to be high during the rainy season, the data here must be about rainy season.

(iii) The range of a data = The maximum value of the data – minimum value of the data

= 99.2 − 84.9

= 14.3

This post was modified 3 years ago by Samar shah
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