Collect a sample of 50 undamaged leaves from any one tree( leaves fallen on the ground to be collected ). Clip the stalk of the leaves and record the length of each leaf along the central vein. Tabulate the data giving the number of leaves in each length class e.g. 10- 14mm, 15-19mm, 20-24 mm, etc. Plot a graph of the number of leaves against the length class and join the points with a smooth curve.
(a) What is the length of the shortest leaf?
(b) What is the length of the longest leaf?
(c) What is the average length of leaves?
(d) In which class length is the maximum number of leaves found.
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