The frequency table shows the times, $$\(t\)$$ minutes, each of 100 children spent exercising in one week. A histogram is drawn to show the information in the frequency table. The height of the bar for the interval $$\(60< t \leqslant 100\)$$ is $$\(10.8 \mathrm{~cm}\)$$. Calculate the height of the bar for the interval $$\(160< t \leqslant 220\)$$. ........................................ $$\(\mathrm{cm}\)$$

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