18,17,17,16,15,16,15,14,16,15,15,17,15,16,15,17,16,15,14Find the mean of the times taken for running
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18+17+17+16+15+16+15+14+16+15+15+17+15+16+15+17+16+15+14/19=15.73
so the mean is 15.73
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