ConceptMedian of Grouped Data
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Question
The lengths of 40 leaves of a plant are measured correct to the nearest millimeter, and the data obtained is represented in the following table:
Length (in mm) |
Number or leaves f_{i} |
118 − 126 |
3 |
127 − 135 |
5 |
136 − 144 |
9 |
145 − 153 |
12 |
154 − 162 |
5 |
163 − 171 |
4 |
172 − 180 |
2 |
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)
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Reference Material
Solution for question: The Lengths of 40 Leaves of a Plant Are Measured Correct to the Nearest Millimeter, and the Data Obtained is Represented in the Following Table concept: Median of Grouped Data. For the course CBSE