1.Seeds are collected and weighed to the nearest gram. The frequency distribution is given below.
Weight (gram) 10-13 14-17 18-21 22-25 26-29 30-33 34-37
Number of seed pods 20 25 32 48 35 27 23
Calculate to 1 decimal place
(a) The median height (3 marks)
(b) Using an assumed mean of 23.5
Calculate to 2 decimal places
(i) The mean height (4 marks)
(ii) The standard deviation (3 marks)
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