The number of Science and Mathematics projects submitted by Model high
school, Nandpur in last 20 years at the state level science exibition is :
2, 3, 4, 1, 2, 3, 1, 5, 4, 2, 3, 1, 3, 5, 4, 3, 2, 2, 3, 2. Prepare a frequency
table and find the mean of the data
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The frequency table should be :
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