NCERT Exercise 12.1 Q4 - Statistics
Question: The length of 40 leaves of a plant are measured correct to one millimetre, and the obtained data is represented in the following table: 118-126 (3), 127-135 (5), 136-144 (9), 145-153 (12), 154-162 (5), 163-171 (4), 172-180 (2). (i) Draw a histogram to represent the given data. (ii) Is there any other suitable graphical representation for the same data? (iii) Is it correct to conclude that the maximum number of leaves are 153 mm long? Why?
Answer: (i) Histogram constructed. (ii) Yes, a frequency polygon. (iii) No, the interval 145-153 has 12 leaves, but their exact lengths vary.
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