Question 3 - Grouped Data - Chapter 12 Class 9 Statistics

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Ex 14.2, 3 - The relative humidity (in %) of a certain city - Ex 14.2

Ex 14.2, 3 - Chapter 14 Class 9 Statistics - Part 2

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Question 3 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… We see that Minimum = 84.9 & Maximum = 99.2 So, we take intervals as 84 – 86, 86 – 88, …… 98 – 100 (ii) Which month or season do you think this data is about? Relative humidity is high. So, the data is about a month of rainy season. (iii) What is the range of this data? Range of data = Maximum value − Minimum value = 99.2 − 84.9 = 14.3

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