The relative humidity (in %) of a certain City for a September month of 30 days was as follows: (i) Construct a grouped frequency distribution table with classes 84-86, 86,-88 etc. (ii) What is the range of the data?
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(i) `(##NCERT_TAM_MAT_IX_C09_SLV_001_A01##)`, (ii) 14.3
Test scores out of 100 for a class of 20 students are as follows: 93, 84, 97, 98, 100, 78, 86, 100, 85, 92, 55, 91, 90, 75, 94, 93, 60, 81, 95 (a) Make a frequency table taking class interval as 91-100, 81-90, ... (b) Find the modal class (The "Modal class" is the class containing the greatest frequency). (c) find the interval that contains the median.
