Question

4. policy holders The lengths of 40 leaves of a plant are measured correct to the nearest millimetre, and the data obtained is represented in the following table : Length (in mm) 118-126 127-135 136-144 145-153 154-162 163-171 172-180 Number of leaves 4 3 2. 12 5 5 9 Find the median length of the leaves. (Hint: The data needs to be converted to continuous classes for finding the median, since the formula assumes continuous classes. The classes then change to 117.5 - 126.5, 126.5 - 135.5, ..., 171.5 - 180.5.) Sale-2020-21​

Answer 1

Step-by-step explanation:

Continuous class intervals with respective cumulative frequencies can be represented as follows. From the table, it can be observed that the cumulative frequency just greater than N/2 (40/2 = 20) is 29, belonging to class interval 144.5 − 153.5. Therefore, median length of leaves is 146.75 mm.

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