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Question

Calculate the mean, median and mode for the following data: 23, 17, 14, 17, 21, 14,

23, 21, 16, 14, 16, 18, 20, 22, 25, 24, 17, 29, 10.

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Solution

The given data in ascending order is,10, 14,14,14,16,16,17,17,17,18,20,21,21,22,23,23,24,25,29.Sum of observations = 10+14+14+14+16+16+17+17+17+18+20+21+21+22+23+23+24+25+29 = 361Number of observations = 19Mean = sum of observationsnumber of observations = 36119 = 19Now, number of observations n = 19 oddmedian = value of n+12th observation =value of 19+12th observation =value of 10th observation = 18Since the observation 14 and 17 appears more frequently in the data, so the mode of the data is 14 and 17.

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